{"id":"CVE-2026-105846","aliases":["GHSA-w84c-53h3-mc2g"],"url":"https://o3.security/vulnerability/CVE-2026-105846","summary":"Payload: Untrusted redirect URL parameter exploit","details":"### Impact\nUnder certain conditions, an attacker can craft a redirect link that sends a guest user to an untrusted destination after authenticating.\n\n### Patches\nUsers should upgrade Payload packages to `>= 3.88.0` or `>= 4.0.0-canary.27`.\n\n### Workarounds\nUpgrading is recommended. Until then, remove user-controlled redirect values from authentication flows or restrict them to known local paths.","published":"2026-10-06T16:01:30.370Z","modified":"2026-10-21T02:54:34.563867201Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"payload","fixedVersion":"3.88.0"},{"ecosystem":"npm","name":"payload","fixedVersion":"4.0.0-canary.27"},{"ecosystem":"npm","name":"@payloadcms/next","fixedVersion":"3.88.0"},{"ecosystem":"npm","name":"@payloadcms/next","fixedVersion":"4.0.0-canary.27"}],"fix":{"url":"https://github.com/payloadcms/payload/commit/a742140ab4fca3160f7f83e9e7d996552ffc3b5a","label":"payloadcms/payload@a742140"},"references":[{"type":"WEB","url":"https://github.com/payloadcms/payload/releases/tag/v3.88.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105846.json"},{"type":"ADVISORY","url":"https://github.com/payloadcms/payload/security/advisories/GHSA-w84c-53h3-mc2g"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105846"},{"type":"FIX","url":"https://github.com/payloadcms/payload/commit/a742140ab4fca3160f7f83e9e7d996552ffc3b5a"},{"type":"PACKAGE","url":"https://github.com/payloadcms/payload"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-21T02:54:34.563867201Z"}}