{"id":"CVE-2026-32726","summary":"SciTokens C++: Sibling-Path Authorization Bypass","details":"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.","aliases":["GHSA-q5fm-fgvx-32jq"],"modified":"2026-04-10T05:43:02.648071Z","published":"2026-03-31T17:01:24.882Z","database_specific":{"cwe_ids":["CWE-863"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32726.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32726.json"},{"type":"FIX","url":"https://github.com/scitokens/scitokens-cpp/commit/decfe2f00cb9cabbf1e17a3bb2cd4ea1bbbd8a73"},{"type":"ADVISORY","url":"https://github.com/scitokens/scitokens-cpp/security/advisories/GHSA-q5fm-fgvx-32jq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32726"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/scitokens/scitokens-cpp","events":[{"introduced":"0"},{"fixed":"fffcab6b9a80105a671ac039772ba81efe73e7e3"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"1.4.1"}]}}],"versions":["v","v.1.3.0-rc0","v0.1.0","v0.2.0","v0.3.0","v0.3.1","v0.3.2","v0.3.3","v0.3.4","v0.3.5","v0.5.0","v0.5.1","v0.6.0","v0.6.1","v0.6.2","v0.6.3","v0.7.0","v0.7.1","v1.0.2","v1.1.0","v1.1.1","v1.1.2","v1.1.3","v1.2.0","v1.3.0","v1.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32726.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"}]}