{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-32727", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-13T15:02:00.626Z", "datePublished": "2026-03-31T01:31:57.392Z", "dateUpdated": "2026-03-31T01:31:57.392Z"}, "containers": {"cna": {"title": "SciTokens: Authorization Bypass via Path Traversal in Scope Validation", "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/scitokens/scitokens/security/advisories/GHSA-3x2w-63fp-3qvw", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/scitokens/scitokens/security/advisories/GHSA-3x2w-63fp-3qvw"}, {"name": "https://github.com/scitokens/scitokens/pull/230", "tags": ["x_refsource_MISC"], "url": "https://github.com/scitokens/scitokens/pull/230"}, {"name": "https://github.com/scitokens/scitokens/commit/2d1cc9e42bc944fe0bbc429b85d166e7156d53f9", "tags": ["x_refsource_MISC"], "url": "https://github.com/scitokens/scitokens/commit/2d1cc9e42bc944fe0bbc429b85d166e7156d53f9"}, {"name": "https://github.com/scitokens/scitokens/releases/tag/v1.9.7", "tags": ["x_refsource_MISC"], "url": "https://github.com/scitokens/scitokens/releases/tag/v1.9.7"}], "affected": [{"vendor": "scitokens", "product": "scitokens", "versions": [{"version": "< 1.9.7", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-31T01:31:57.392Z"}, "descriptions": [{"lang": "en", "value": "SciTokens is a reference library for generating and using SciTokens. Prior to version 1.9.7, the Enforcer is vulnerable to a path traversal attack where an attacker can use dot-dot (..) in the scope claim of a token to escape the intended directory restriction. This occurs because the library normalizes both the authorized path (from the token) and the requested path (from the application) before comparing them using startswith. This issue has been patched in version 1.9.7."}], "source": {"advisory": "GHSA-3x2w-63fp-3qvw", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "SciTokens is a reference library for generating and using SciTokens. Prior to version 1.9.7, the Enforcer is vulnerable to a path traversal attack where an attacker can use dot-dot (..) in the scope claim of a token to escape the intended directory restriction. This occurs because the library normalizes both the authorized path (from the token) and the requested path (from the application) before comparing them using startswith. This issue has been patched in version 1.9.7."}], "id": "CVE-2026-32727", "lastModified": "2026-03-31T03:15:57.340", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-03-31T03:15:57.340", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/scitokens/scitokens/commit/2d1cc9e42bc944fe0bbc429b85d166e7156d53f9"}, {"source": "security-advisories@github.com", "url": "https://github.com/scitokens/scitokens/pull/230"}, {"source": "security-advisories@github.com", "url": "https://github.com/scitokens/scitokens/releases/tag/v1.9.7"}, {"source": "security-advisories@github.com", "url": "https://github.com/scitokens/scitokens/security/advisories/GHSA-3x2w-63fp-3qvw"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.9.7)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "scitokens", "source": "cna", "vendor": "scitokens"}, "product": "scitokens", "vendor": "scitokens"}], "analysis": {"en": {"generated_at": "2026-03-31T05:24:55.354613+00:00", "value": {"mitigation_remediation": ["Upgrade SciTokens to version 1.9.7 or later"], "summary": {"action": "Immediate Patch", "impact": "Authorization Bypass via Path Traversal"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the SciTokens library, specifically all releases prior to version 1.9.7. Any installation that relies on the Enforcer for token validation without additional safeguards is susceptible. The fix is delivered in the 1.9.7 release and later versions.", "description_and_impact": "SciTokens, a reference library for generating and using SciTokens, contains a path traversal flaw in its Enforcer component. The token scope claim is normalized and then checked against the requested path using a startswith comparison. Because dot\u2011dot (..) segments are allowed, an attacker can craft a scope that escapes the intended directory and access resources outside the authorized directory structure. This results in an authorization bypass that can allow an attacker to read, modify, or delete data in unintended locations. The weakness corresponds to CWE\u201122: Improper Restriction of Operations within the Bounds of a Memory Buffer.", "risk_and_exploitability": "The vulnerability poses a significant threat in systems that rely on SciTokens for access control. Given the high CVSS score and the nature of the flaw\u2014allowing unauthenticated directory traversal if malicious scopes are introduced\u2014it is advisable to treat the finding as high risk. Strong mitigation is achieved by applying the vendor patch and ensuring that only trusted, properly signed tokens are accepted by the application."}}}}, "created": "2026-03-31T19:56:31.392270+00:00", "updated": "2026-03-31T20:39:41.986473+00:00", "vendors": ["scitokens", "scitokens$PRODUCT$scitokens"]}