{"id":"CVE-2026-105846","aliases":["EUVD-2026-93488","GHSA-w84c-53h3-mc2g"],"status":"published","title":"Payload: Untrusted redirect URL parameter exploit","description":"Payload is a free and open source headless content management system. In versions from 3.40.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an attacker can craft a redirect URL parameter that sends a guest user to an untrusted destination after the authentication flow completes. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00225,"percentile":0.1327,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-601"],"published":"2026-10-06T16:01:30Z","modified":"2026-10-28T02:30:24Z","fixes":[{"ecosystem":"npm","package":"payload","fixed_in":["3.88.0","4.0.0-canary.27"],"sources":["ghsa","osv"]},{"ecosystem":"npm","package":"@payloadcms/next","fixed_in":["3.88.0","4.0.0-canary.27"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"payload","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.40.0"},{"fixed":"3.88.0"}]}]},{"source":"ghsa","ecosystem":"npm","package":"payload","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0-canary.0"},{"fixed":"4.0.0-canary.27"}]}]},{"source":"ghsa","ecosystem":"npm","package":"@payloadcms/next","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.31.0"},{"fixed":"3.88.0"}]}]},{"source":"ghsa","ecosystem":"npm","package":"@payloadcms/next","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0-canary.0"},{"fixed":"4.0.0-canary.27"}]}]},{"source":"osv","ecosystem":"npm","package":"payload","ranges":[{"type":"SEMVER","events":[{"introduced":"3.40.0"},{"fixed":"3.88.0"}]}]},{"source":"osv","ecosystem":"npm","package":"payload","ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0-canary.0"},{"fixed":"4.0.0-canary.27"}]}]},{"source":"osv","ecosystem":"npm","package":"@payloadcms/next","ranges":[{"type":"SEMVER","events":[{"introduced":"3.31.0"},{"fixed":"3.88.0"}]}]},{"source":"osv","ecosystem":"npm","package":"@payloadcms/next","ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0-canary.0"},{"fixed":"4.0.0-canary.27"}]}]}],"products":[{"vendor":"@payloadcms","product":"next"},{"vendor":"payloadcms","product":"payload"},{"vendor":"vercel","product":"next"}],"references":[{"url":"https://github.com/payloadcms/payload/security/advisories/GHSA-w84c-53h3-mc2g","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory","web"]},{"url":"https://github.com/payloadcms/payload/commit/a742140ab4fca3160f7f83e9e7d996552ffc3b5a","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/payloadcms/payload/releases/tag/v3.88.0","tags":["x_refsource_MISC","Patch","Release Notes","web"]},{"url":"https://github.com/advisories/GHSA-w84c-53h3-mc2g"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105846.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105846","tags":["advisory"]},{"url":"https://github.com/payloadcms/payload","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-105846","title":"Payload: Untrusted redirect URL parameter exploit","description":"Payload is a free and open source headless content management system. In versions from 3.40.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an attacker can craft a redirect URL parameter that sends a guest user to an untrusted destination after the authentication flow completes. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.","status":"published","published":"2026-10-06T16:01:30.37Z","modified":"2026-10-06T17:39:36.818Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:19:56.755658Z"}],"euvd":[{"id":"EUVD-2026-93488","description":"Payload is a free and open source headless content management system. In versions from 3.40.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an attacker can craft a redirect URL parameter that sends a guest user to an untrusted destination after the authentication flow completes. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.","status":"published","published":"2026-10-06T16:01:30Z","modified":"2026-10-06T17:39:36Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T17:27:37.140631Z"}],"ghsa":[{"id":"GHSA-w84c-53h3-mc2g","title":"Payload: Untrusted redirect URL parameter exploit","description":"### 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 `\u003e= 3.88.0` or `\u003e= 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.","status":"published","published":"2026-10-06T16:09:13Z","modified":"2026-10-06T16:09:14Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:41:27.036917Z"}],"nvd":[{"id":"CVE-2026-105846","description":"Payload is a free and open source headless content management system. In versions from 3.40.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an attacker can craft a redirect URL parameter that sends a guest user to an untrusted destination after the authentication flow completes. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.","status":"published","published":"2026-10-06T17:17:19.967Z","modified":"2026-10-15T00:13:53.53Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:12:54.486849Z"}],"osv":[{"id":"CVE-2026-105846","title":"Payload: Untrusted redirect URL parameter exploit","description":"Payload is a free and open source headless content management system. In versions from 3.40.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an attacker can craft a redirect URL parameter that sends a guest user to an untrusted destination after the authentication flow completes. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.","status":"published","published":"2026-10-06T16:01:30.37Z","modified":"2026-10-28T02:30:24.087324896Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T15:44:54.583213Z"},{"id":"GHSA-w84c-53h3-mc2g","title":"Payload: Untrusted redirect URL parameter exploit","description":"### 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 `\u003e= 3.88.0` or `\u003e= 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.","status":"published","published":"2026-10-06T16:09:13Z","modified":"2026-10-06T16:15:05.069813584Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T15:46:58.401149Z"}]}}