{"id":"CVE-2026-32726","state":"PUBLISHED","title":"SciTokens C++: Sibling-Path Authorization Bypass","description":"SciTokens C++ is a minimal library for creating and using SciTokens from C or C++. Prior to version 1.4.1, scitokens-cpp is vulnerable to an authorization bypass in path-based scope validation. The enforcer used a simple string-prefix comparison when checking whether a requested resource path was covered by a token's authorized scope path. Because the check did not require a path-segment boundary, a token scoped to one path could incorrectly authorize access to sibling paths that merely started with the same prefix. This issue has been patched in version 1.4.1.","publishedAt":"2026-03-31T17:01:24.882Z","updatedAt":"2026-03-31T19:09:02.060Z","severity":{"score":8.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["scitokens scitokens-cpp"],"affected":[{"vendor":"scitokens","product":"scitokens-cpp","versions":[{"version":"< 1.4.1","status":"affected"}]}],"references":["https://github.com/scitokens/scitokens-cpp/security/advisories/GHSA-q5fm-fgvx-32jq","https://github.com/scitokens/scitokens-cpp/commit/decfe2f00cb9cabbf1e17a3bb2cd4ea1bbbd8a73"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/32xxx/CVE-2026-32726.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-32726","state":"PUBLISHED","datePublished":"2026-03-31T17:01:24.882Z","dateUpdated":"2026-03-31T19:09:02.060Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-13T15:02:00.625Z"},"containers":{"cna":{"title":"SciTokens C++: Sibling-Path Authorization Bypass","descriptions":[{"lang":"en","value":"SciTokens C++ is a minimal library for creating and using SciTokens from C or C++. Prior to version 1.4.1, scitokens-cpp is vulnerable to an authorization bypass in path-based scope validation. The enforcer used a simple string-prefix comparison when checking whether a requested resource path was covered by a token's authorized scope path. Because the check did not require a path-segment boundary, a token scoped to one path could incorrectly authorize access to sibling paths that merely started with the same prefix. This issue has been patched in version 1.4.1."}],"affected":[{"vendor":"scitokens","product":"scitokens-cpp","versions":[{"version":"< 1.4.1","status":"affected"}]}],"references":[{"url":"https://github.com/scitokens/scitokens-cpp/security/advisories/GHSA-q5fm-fgvx-32jq","name":"https://github.com/scitokens/scitokens-cpp/security/advisories/GHSA-q5fm-fgvx-32jq","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/scitokens/scitokens-cpp/commit/decfe2f00cb9cabbf1e17a3bb2cd4ea1bbbd8a73","name":"https://github.com/scitokens/scitokens-cpp/commit/decfe2f00cb9cabbf1e17a3bb2cd4ea1bbbd8a73","tags":["x_refsource_MISC"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-31T17:01:24.882Z"},"source":{"advisory":"GHSA-q5fm-fgvx-32jq","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/scitokens/scitokens-cpp/security/advisories/GHSA-q5fm-fgvx-32jq","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-31T18:39:24.642064Z","id":"CVE-2026-32726","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-31T19:09:02.060Z"}}]}}}