{"action":"Upgrade accesscontrol to 7.4 or later.","affected":[{"fixed":"7.4","introduced":"0"}],"component":"accesscontrol","cve_ids":["CVE-2026-77401"],"ecosystem":"PyPI","epss":0.00469,"exploited":false,"fixed_versions":["7.4"],"ghsa_id":"GHSA-pq59-9fq7-m886","id":"tcs_01M5KH9AX4Y43B868WWX0TACPC","modified_at":"2026-10-01T17:45:03.127620253Z","published_at":"2026-10-01T16:38:32.886701Z","references":["https://osv.dev/vulnerability/PYSEC-2026-4022","https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-pq59-9fq7-m886","https://nvd.nist.gov/vuln/detail/CVE-2026-77401","https://github.com/zopefoundation/AccessControl/commit/f980450eea416718be62847f34dfd51822938e43","https://github.com/zopefoundation/AccessControl","https://github.com/zopefoundation/AccessControl/releases/tag/7.4","https://pypi.org/project/accesscontrol","https://github.com/advisories/GHSA-pq59-9fq7-m886"],"severity":{"label":"medium","score":6.8},"sources":[{"source":"osv","source_id":"PYSEC-2026-4022","url":"https://osv.dev/vulnerability/PYSEC-2026-4022"}],"summary":"Zope AccessControl vulnerable to information disclosure through Python string `format` and `format_map` functions"}