{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77401","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-08-20T19:55:27.023Z","datePublished":"2026-09-16T14:28:01.186Z","dateUpdated":"2026-09-16T18:35:46.823Z"},"containers":{"cna":{"title":"Zope AccessControl: Information disclosure through Python string `format` and `format_map` functions","problemTypes":[{"descriptions":[{"cweId":"CWE-693","lang":"en","description":"CWE-693: Protection Mechanism Failure","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-pq59-9fq7-m886","tags":["x_refsource_CONFIRM"],"url":"https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-pq59-9fq7-m886"},{"name":"https://github.com/zopefoundation/AccessControl/commit/f980450eea416718be62847f34dfd51822938e43","tags":["x_refsource_MISC"],"url":"https://github.com/zopefoundation/AccessControl/commit/f980450eea416718be62847f34dfd51822938e43"},{"name":"https://github.com/zopefoundation/AccessControl/releases/tag/7.4","tags":["x_refsource_MISC"],"url":"https://github.com/zopefoundation/AccessControl/releases/tag/7.4"}],"affected":[{"vendor":"zopefoundation","product":"AccessControl","versions":[{"version":"< 7.4","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-16T14:28:01.186Z"},"descriptions":[{"lang":"en","value":"Zope AccessControl provides a general security framework for use in Zope. Prior to 7.4, applications that allow untrusted users to create and execute AccessControl-controlled Python code do not safely guard str.format and str.format_map when those methods are reached through a str subclass. In both ImplPython.py and cAccessControl.c, Python formatting can recursively access attributes and subscriptions using unrestricted getattr and getitem behavior instead of the policy-restricted getattr and getitem operations. A controlled format string can therefore disclose objects reachable from values available to the formatting operation. This issue is fixed in version 7.4."}],"source":{"advisory":"GHSA-pq59-9fq7-m886","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-16T18:18:37.466466Z","id":"CVE-2026-77401","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-16T18:35:46.823Z"}}]}}