{"id":"CVE-2026-92760","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-92760","summary":"Shlink through 5.1.6 fails to enforce API key role restrictions when issuing Mercure subscription tokens, allowing restricted keys to subscribe to all topics. Attackers with author-only…","details":"Shlink through 5.1.6 fails to enforce API key role restrictions when issuing Mercure subscription tokens, allowing restricted keys to subscribe to all topics. Attackers with author-only or domain-only keys can access the mercure-info endpoint to receive visit data including referrer, user agent, geolocation, and full short URL objects for URLs outside their authorization boundary.","published":"2026-09-16T21:17:24.630","modified":"2026-09-16T21:17:24.630","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/shlinkio/shlink"},{"type":"WEB","url":"https://github.com/shlinkio/shlink-common/blob/main/src/Mercure/LcobucciJwtProvider.php#L38-L41"},{"type":"WEB","url":"https://github.com/shlinkio/shlink/blob/v5.1.6/module/Rest/src/Action/MercureInfoAction.php#L26-L42"},{"type":"WEB","url":"https://github.com/shlinkio/shlink/issues/2633"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/shlink-through-5.1.6-mercure-token-authorization-bypass"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-16T21:17:24.630"}}