{"id":"UBUNTU-CVE-2026-32726","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.","modified":"2026-05-20T16:25:22.147874814Z","published":"2026-03-31T18:16:00Z","upstream":["CVE-2026-32726"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-32726"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-32726"},{"type":"REPORT","url":"https://github.com/scitokens/scitokens-cpp/commit/decfe2f00cb9cabbf1e17a3bb2cd4ea1bbbd8a73"},{"type":"REPORT","url":"https://github.com/scitokens/scitokens-cpp/security/advisories/GHSA-q5fm-fgvx-32jq"}],"affected":[{"package":{"name":"scitokens-cpp","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/scitokens-cpp?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.1-2","0.6.2-1","0.6.2-1ubuntu1","0.6.2-2","0.7.0-1","0.7.0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libscitokens0","binary_version":"0.7.0-2"},{"binary_version":"0.7.0-2","binary_name":"scitokens-cpp"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32726.json"}},{"package":{"name":"scitokens-cpp","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/scitokens-cpp?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.2-1","1.1.0-1","1.1.0-1.1","1.1.0-1.1build2","1.1.0-1.1build3"],"ecosystem_specific":{"binaries":[{"binary_version":"1.1.0-1.1build3","binary_name":"libscitokens0t64"},{"binary_version":"1.1.0-1.1build3","binary_name":"scitokens-cpp"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32726.json"}},{"package":{"name":"scitokens-cpp","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/scitokens-cpp?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.3-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libscitokens0t64","binary_version":"1.1.3-1"},{"binary_name":"scitokens-cpp","binary_version":"1.1.3-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32726.json"}},{"package":{"name":"scitokens-cpp","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/scitokens-cpp?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.3-1","1.2.0-1","1.3.0-1","1.3.0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libscitokens0t64","binary_version":"1.3.0-2"},{"binary_version":"1.3.0-2","binary_name":"scitokens-cpp"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-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"},{"type":"Ubuntu","score":"medium"}]}