135 lines
5.4 KiB
JSON
135 lines
5.4 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-2026-34052",
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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": "2026-03-25T15:29:04.746Z",
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"datePublished": "2026-04-03T22:04:10.519Z",
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"dateUpdated": "2026-04-06T18:59:04.966Z"
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},
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"containers": {
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"cna": {
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"title": "LTI JupyterHub Authenticator: Unbounded Memory Growth via Nonce Storage (Denial of Service)",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-401",
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"lang": "en",
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"description": "CWE-401: Missing Release of Memory after Effective Lifetime",
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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-770",
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"lang": "en",
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"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
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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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"cvssV3_1": {
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"attackComplexity": "HIGH",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 5.9,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"version": "3.1"
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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/jupyterhub/ltiauthenticator/security/advisories/GHSA-8mxq-7xr7-2fxj",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-8mxq-7xr7-2fxj"
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},
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{
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"name": "https://github.com/jupyterhub/ltiauthenticator/releases/tag/1.6.3",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/jupyterhub/ltiauthenticator/releases/tag/1.6.3"
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}
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],
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"affected": [
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{
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"vendor": "jupyterhub",
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"product": "ltiauthenticator",
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"versions": [
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{
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"version": "< 1.6.3",
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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": "2026-04-03T22:04:10.519Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "LTI JupyterHub Authenticator is a JupyterHub authenticator for LTI. Prior to version 1.6.3, the LTI 1.1 validator stores OAuth nonces in a class-level dictionary that grows without bounds. Nonces are added before signature validation, so an attacker with knowledge of a valid consumer key can send repeated requests with unique nonces to gradually exhaust server memory, causing a denial of service. This issue has been patched in version 1.6.3."
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}
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],
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"source": {
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"advisory": "GHSA-8mxq-7xr7-2fxj",
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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": "2026-04-06T18:58:43.478477Z",
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"id": "CVE-2026-34052",
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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": "2026-04-06T18:59:04.966Z"
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}
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}
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]
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}
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} |