{"id":"CVE-2026-92760","summary":"Shlink through 5.1.6 Mercure Token Authorization Bypass","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.","modified":"2026-09-25T03:30:27.118295862Z","published":"2026-09-16T20:32:27.683Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92760.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-863"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92760.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92760"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/shlink-through-5.1.6-mercure-token-authorization-bypass"},{"type":"REPORT","url":"https://github.com/shlinkio/shlink/issues/2633"},{"type":"PACKAGE","url":"https://github.com/shlinkio/shlink"},{"type":"ARTICLE","url":"https://github.com/shlinkio/shlink-common/blob/main/src/Mercure/LcobucciJwtProvider.php#L38-L41"},{"type":"ARTICLE","url":"https://github.com/shlinkio/shlink/blob/v5.1.6/module/Rest/src/Action/MercureInfoAction.php#L26-L42"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/shlinkio/shlink","events":[{"introduced":"0"},{"fixed":"82c82883fef136ded4c72f1e94334e6975711410"}],"database_specific":{"source":["AFFECTED_FIELD","DESCRIPTION"],"extracted_events":[{"introduced":"0"},{"last_affected":"5.1.6"},{"fixed":"5.1.6"}]}}],"versions":["v5.1.5","v5.1.4","v5.1.3","v5.1.2","v5.1.1","v5.1.0","v5.0.2","v5.0.1","v5.0.0","v4.6.0","v4.5.3","v4.5.2","v4.5.1","v4.5.0","v4.4.6","v4.4.5","v4.4.4","v4.4.3","v4.4.2","v4.4.1","v4.4.0","v4.3.1","v4.3.0","v4.2.5","v4.2.4","v4.2.3","v4.2.2","v4.2.1","v4.2.0","v4.1.1","v4.1.0","v4.0.3","v4.0.2","v3.7.3","v4.0.1","v4.0.0","v3.7.2","v3.7.1","v3.7.0","v3.6.4","v3.6.3","v3.6.2","v3.6.1","v3.6.0","v3.5.4","v3.5.3","v3.5.2","v3.5.1","v3.5.0","v3.4.0","v3.3.2","v3.3.1","v3.3.0","v3.2.1","v3.2.0","v3.1.2","v3.1.1","v3.1.0","v3.0.3","v3.0.2","v3.0.1","v3.0.0","v2.10.3","v2.10.2","v2.10.1","v2.10.0","v2.9.3","v2.9.2","v2.9.1","v2.9.0","v2.8.1","v2.8.0","v2.7.3","v2.7.2","v2.7.1","v2.7.0","v2.6.2","v2.6.1","v2.6.0","v2.5.2","v2.5.1","v2.5.0","v2.4.2","v2.4.1","v2.4.0","v2.3.0","v2.2.2","v2.2.1","v2.2.0","v2.1.4","v2.1.3","v2.1.2","v2.1.1","v2.1.0","v2.0.5","v2.0.4","v2.0.3","v2.0.2","v1.21.1","v2.0.1","v2.0.0","v1.21.0","v1.20.3","v1.20.2","v1.20.1","v1.20.0","v1.19.0","v1.19.0-beta.1","v1.18.1","v1.18.0","v1.17.0","v1.16.3","v1.16.2","v1.16.1","v1.16.0","v1.15.1","v1.15.0","v1.14.1","v1.14.0","v1.13.2","v1.13.1","v1.13.0","v1.12.0","v1.11.0","v1.10.2","v1.10.1","v1.10.0","v1.9.1","v1.9.0","v1.8.1","v1.8.0","v1.7.2","v1.7.1","v1.7.0","v1.6.2","v1.6.1","v1.6.0","v1.5.0","v1.4.0","v1.3.1","v1.3.0","v1.2.2","v1.2.1","v1.2.0","v1.1.0","v1.0.0","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92760.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}]}