322 lines
17 KiB
JSON
322 lines
17 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-80218",
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"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"state": "PUBLISHED",
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"assignerShortName": "EEF",
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"dateReserved": "2026-09-11T18:30:01.333Z",
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"datePublished": "2026-09-17T13:09:25.585Z",
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"dateUpdated": "2026-09-17T18:28:47.571Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"collectionURL": "https://repo.hex.pm",
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"cpes": [
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"cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.AshAuthentication.Strategy.Password.SignInWithTokenPreparation'",
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"'Elixir.AshAuthentication.Strategy.WebAuthn.SignInWithTokenPreparation'",
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"'Elixir.AshAuthentication.Strategy.RememberMe.SignInPreparation'"
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],
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"packageName": "ash_authentication",
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"packageURL": "pkg:hex/ash_authentication",
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"product": "ash_authentication",
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"programFiles": [
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"lib/ash_authentication/strategies/password/sign_in_with_token_preparation.ex",
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"lib/ash_authentication/strategies/webauthn/sign_in_with_token_preparation.ex",
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"lib/ash_authentication/strategies/remember_me/sign_in_preparation.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.AshAuthentication.Strategy.Password.SignInWithTokenPreparation':prepare/3"
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},
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{
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"name": "'Elixir.AshAuthentication.Strategy.WebAuthn.SignInWithTokenPreparation':prepare/3"
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},
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{
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"name": "'Elixir.AshAuthentication.Strategy.RememberMe.SignInPreparation':prepare/3"
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}
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],
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"repo": "https://github.com/team-alembic/ash_authentication",
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"vendor": "team-alembic",
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"versions": [
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{
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"lessThan": "4.15.0",
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"status": "affected",
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"version": "3.10.5",
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"versionType": "semver"
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},
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{
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"lessThan": "5.0.0-rc.14",
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"status": "affected",
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"version": "5.0.0-rc.0",
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"versionType": "semver"
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}
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]
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},
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{
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"collectionURL": "https://github.com",
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"cpes": [
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"cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.AshAuthentication.Strategy.Password.SignInWithTokenPreparation'",
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"'Elixir.AshAuthentication.Strategy.WebAuthn.SignInWithTokenPreparation'",
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"'Elixir.AshAuthentication.Strategy.RememberMe.SignInPreparation'"
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],
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"packageName": "team-alembic/ash_authentication",
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"packageURL": "pkg:github/team-alembic/ash_authentication",
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"product": "ash_authentication",
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"programFiles": [
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"lib/ash_authentication/strategies/password/sign_in_with_token_preparation.ex",
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"lib/ash_authentication/strategies/webauthn/sign_in_with_token_preparation.ex",
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"lib/ash_authentication/strategies/remember_me/sign_in_preparation.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.AshAuthentication.Strategy.Password.SignInWithTokenPreparation':prepare/3"
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},
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{
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"name": "'Elixir.AshAuthentication.Strategy.WebAuthn.SignInWithTokenPreparation':prepare/3"
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},
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{
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"name": "'Elixir.AshAuthentication.Strategy.RememberMe.SignInPreparation':prepare/3"
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}
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],
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"repo": "https://github.com/team-alembic/ash_authentication",
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"vendor": "team-alembic",
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"versions": [
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{
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"changes": [
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{
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"at": "2640e1872e1fef4e4606e601bf00102cff784c03",
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"status": "unaffected"
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},
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{
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"at": "7baac243ca651eee127a84d672eee3fcff42e598",
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"status": "unaffected"
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}
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],
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"lessThan": "*",
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"status": "affected",
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"version": "eca8cadea0f1595ed2c10a0c177b1da9aa9e5269",
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"versionType": "git"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"cpeMatch": [
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{
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"criteria": "cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "4.15.0",
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"versionStartIncluding": "3.10.5",
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"vulnerable": true
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},
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{
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"criteria": "cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "5.0.0-rc.14",
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"versionStartIncluding": "5.0.0-rc.0",
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"vulnerable": true
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}
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],
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"negate": false,
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"operator": "OR"
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}
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],
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"operator": "AND"
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "reporter",
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"value": "Peter Ullrich"
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},
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{
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"lang": "en",
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"type": "analyst",
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"value": "Jonatan Männchen / EEF"
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},
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{
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"lang": "en",
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"type": "remediation developer",
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"value": "James Harton"
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}
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],
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"dateAssigned": "2026-09-11T18:34:31.000Z",
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "<p>Improper Authentication vulnerability in team-alembic AshAuthentication allows an attacker holding a sign-in token for one authenticated resource to be signed in as a user of a different resource.</p>\n<p><code>AshAuthentication.Strategy.Password.SignInWithTokenPreparation.extract_primary_keys_from_subject/2</code> parses the JWT <code>sub</code> claim (for example <code>user?id=1</code>) with <code>URI.parse/1</code> and keeps only its query string, discarding the path segment that names the subject the token was issued for. Nothing else restores that binding: <code>AshAuthentication.Jwt.verify/3</code> checks the signature, <code>exp</code>, <code>nbf</code>, <code>jti</code> and the library-version claims, the purpose check only requires <code>sign_in</code>, and the remaining comparison is over primary-key field names, which are identical across resources. The WebAuthn sign-in and remember-me preparations carry copies of the same helper and drop the path in the same way. The magic link sign-in path pins the subject name against the resource and is not affected.</p>\n<p>This issue affects ash_authentication: from 3.10.5 before 4.15.0 and from 5.0.0-rc.0 before 5.0.0-rc.14.</p>"
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},
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{
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"base64": false,
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"type": "text/markdown",
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"value": "Improper Authentication vulnerability in team-alembic AshAuthentication allows an attacker holding a sign-in token for one authenticated resource to be signed in as a user of a different resource.\n\n`AshAuthentication.Strategy.Password.SignInWithTokenPreparation.extract_primary_keys_from_subject/2` parses the JWT `sub` claim (for example `user?id=1`) with `URI.parse/1` and keeps only its query string, discarding the path segment that names the subject the token was issued for. Nothing else restores that binding: `AshAuthentication.Jwt.verify/3` checks the signature, `exp`, `nbf`, `jti` and the library-version claims, the purpose check only requires `sign_in`, and the remaining comparison is over primary-key field names, which are identical across resources. The WebAuthn sign-in and remember-me preparations carry copies of the same helper and drop the path in the same way. The magic link sign-in path pins the subject name against the resource and is not affected.\n\nThis issue affects ash_authentication: from 3.10.5 before 4.15.0 and from 5.0.0-rc.0 before 5.0.0-rc.14."
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}
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],
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"value": "Improper Authentication vulnerability in team-alembic AshAuthentication allows an attacker holding a sign-in token for one authenticated resource to be signed in as a user of a different resource.\n\nAshAuthentication.Strategy.Password.SignInWithTokenPreparation.extract_primary_keys_from_subject/2 parses the JWT sub claim (for example user?id=1) with URI.parse/1 and keeps only its query string, discarding the path segment that names the subject the token was issued for. Nothing else restores that binding: AshAuthentication.Jwt.verify/3 checks the signature, exp, nbf, jti and the library-version claims, the purpose check only requires sign_in, and the remaining comparison is over primary-key field names, which are identical across resources. The WebAuthn sign-in and remember-me preparations carry copies of the same helper and drop the path in the same way. The magic link sign-in path pins the subject name against the resource and is not affected.\n\nThis issue affects ash_authentication: from 3.10.5 before 4.15.0 and from 5.0.0-rc.0 before 5.0.0-rc.14."
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-151",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-151 Identity Spoofing"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"attackVector": "NETWORK",
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"baseScore": 7.6,
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"baseSeverity": "HIGH",
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"privilegesRequired": "LOW",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "NONE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
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"version": "4.0",
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"vulnAvailabilityImpact": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-287",
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"description": "CWE-287 Improper Authentication",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"shortName": "EEF",
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"dateUpdated": "2026-09-17T13:09:25.585Z"
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},
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"references": [
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{
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"tags": [
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"vendor-advisory",
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"related"
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],
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"url": "https://github.com/team-alembic/ash_authentication/security/advisories/GHSA-3pr8-f99q-86hp"
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},
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{
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"name": "EEF CNA record for CVE-2026-80218",
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"tags": [
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"related"
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],
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"url": "https://cna.erlef.org/cves/CVE-2026-80218.html"
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},
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{
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"name": "OSV record EEF-CVE-2026-80218",
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"tags": [
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"related"
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],
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"url": "https://osv.dev/vulnerability/EEF-CVE-2026-80218"
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},
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{
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"name": "Introducing commit eca8cad in team-alembic/ash_authentication",
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"tags": [
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"related"
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],
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"url": "https://github.com/team-alembic/ash_authentication/commit/eca8cadea0f1595ed2c10a0c177b1da9aa9e5269"
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},
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{
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"name": "Fix commit 2640e18 in team-alembic/ash_authentication",
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"tags": [
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"patch"
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],
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"url": "https://github.com/team-alembic/ash_authentication/commit/2640e1872e1fef4e4606e601bf00102cff784c03"
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},
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{
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"name": "Fix commit 7baac24 in team-alembic/ash_authentication",
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"tags": [
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"patch"
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],
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"url": "https://github.com/team-alembic/ash_authentication/commit/7baac243ca651eee127a84d672eee3fcff42e598"
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}
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],
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"source": {
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"discovery": "INTERNAL"
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},
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"title": "Sign-in token minted for one resource accepted by another in AshAuthentication"
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-09-17T18:28:40.896413Z",
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"id": "CVE-2026-80218",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-09-17T18:28:47.571Z"
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}
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}
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]
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}
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} |