138 lines
6.0 KiB
JSON
138 lines
6.0 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-2026-47203",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-05-18T22:07:37.436Z",
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"datePublished": "2026-06-19T20:19:47.903Z",
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"dateUpdated": "2026-06-22T18:13:48.660Z"
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},
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"containers": {
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"cna": {
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"title": "Authelia Missing Username Canonicalization in Basic Auth (LDAP)",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-178",
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"lang": "en",
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"description": "CWE-178: Improper Handling of Case Sensitivity",
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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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"descriptions": [
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{
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"cweId": "CWE-307",
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"lang": "en",
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"description": "CWE-307: Improper Restriction of Excessive Authentication Attempts",
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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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"metrics": [
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{
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "HIGH",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "LOW",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 2.9,
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"baseSeverity": "LOW",
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"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P",
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"version": "4.0"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/authelia/authelia/security/advisories/GHSA-hjj4-hfjm-fmrj",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/authelia/authelia/security/advisories/GHSA-hjj4-hfjm-fmrj"
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},
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{
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"name": "https://github.com/authelia/authelia/commit/b8985b57b70acdff8f204ed426ff619e763461ad",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/authelia/authelia/commit/b8985b57b70acdff8f204ed426ff619e763461ad"
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}
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],
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"affected": [
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{
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"vendor": "authelia",
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"product": "authelia",
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"versions": [
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{
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"version": ">= 4.38.0, < 4.39.20",
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"status": "affected"
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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": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-06-19T20:19:47.903Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Authelia is an open-source authentication and authorization server providing two-factor authentication and single sign-on (SSO) for applications via a web portal. In versions 4.38.0 through 4.39.19, when a user authenticates via Basic Auth (i.e via the `Authorization` header with the `Basic` scheme) on the authz verification endpoint, Authelia takes the username directly from the `Authorization` header and passes it as is to the regulation system for ban checking and attempt recording. LDAP treats usernames case insensitively : `john`, `John`, and `JOHN` all bind as the same user. But the regulation SQL queries treat the lookup of these values in certain scenarios as case sensitive. This allows each variation of a usernames case to have its own ban bucket. Upgrade to 4.39.20 to receive a patch. As a workaround, explicitly disable the basic auth mechanism."
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}
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],
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"source": {
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"advisory": "GHSA-hjj4-hfjm-fmrj",
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"discovery": "UNKNOWN"
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}
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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": "2026-06-22T17:29:23.539472Z",
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"id": "CVE-2026-47203",
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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": "partial"
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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": "2026-06-22T18:13:48.660Z"
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}
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}
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]
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}
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} |