{"id":"GHSA-pj5h-5q6c-3pfx","summary":"Payload external upload trust validation issue","details":"## Impact\n\nUnder certain external upload configurations, Payload could send authentication data to a destination that was not verified as trusted. If the affected request contained a valid session, this could expose that session to an unintended recipient.\n\n**You are affected if:**\n\n- You have enabled external URL-based upload retrieval, where authenticated requests can trigger it.\n\n## Patches\n\nPayload now validates the destination before forwarding authentication data and reapplies that validation when a request changes destination.\n\nUsers should upgrade Payload packages to `\u003e= 3.90.0` or `\u003e= 4.0.0-canary.34`.\n\n## Workarounds\nIt is recommended to update all Payload packages to `\u003e= 3.90.0` or `\u003e= 4.0.0-canary.34`.\n\nIf you cannot, a valid workaround exists:\n- Disable external URL-based upload retrieval where practical.\n- If you cannot disable it, configure the upload header filter to remove authentication data from outbound file requests.\n- Restrict access to the affected upload functionality.","aliases":["CVE-2026-105861"],"modified":"2026-10-07T20:45:05.788975222Z","published":"2026-10-07T20:29:41Z","database_specific":{"nvd_published_at":"2026-10-06T17:17:22Z","cwe_ids":["CWE-200","CWE-346"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-10-07T20:29:41Z"},"references":[{"type":"WEB","url":"https://github.com/payloadcms/payload/security/advisories/GHSA-pj5h-5q6c-3pfx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105861"},{"type":"WEB","url":"https://github.com/payloadcms/payload/commit/ba5cf6ae20d27a2c15106cb37466419031f86e6d"},{"type":"PACKAGE","url":"https://github.com/payloadcms/payload"},{"type":"WEB","url":"https://github.com/payloadcms/payload/releases/tag/v3.90.0"}],"affected":[{"package":{"name":"payload","ecosystem":"npm","purl":"pkg:npm/payload"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.0.0"},{"fixed":"3.90.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-pj5h-5q6c-3pfx/GHSA-pj5h-5q6c-3pfx.json"}},{"package":{"name":"payload","ecosystem":"npm","purl":"pkg:npm/payload"},"ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0-canary.0"},{"fixed":"4.0.0-canary.34"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-pj5h-5q6c-3pfx/GHSA-pj5h-5q6c-3pfx.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"}]}