{"schema":"threatline.record/2","record":{"id":"CVE-2026-105861","aliases":["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 `>= 3.90.0` or `>= 4.0.0-canary.34`.\n\n## Workarounds\nIt is recommended to update all Payload packages to `>= 3.90.0` or `>= 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.","categories":["Libraries & packages"],"product":"payload","vendor":"payloadcms","ecosystem":"npm","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-pj5h-5q6c-3pfx","source_modified_at":"2026-10-20T08:00:34Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"payload"},"range":">= 3.0.0, < 3.90.0"},{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-pj5h-5q6c-3pfx","source_modified_at":"2026-10-20T08:00:34Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"payload"},"range":">= 4.0.0-canary.0, < 4.0.0-canary.34"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-105861","source_modified_at":"2026-10-06T17:39:16.866Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"payload","vendor":"payloadcms","versions":[{"version":"> 3.0.0, < 3.90.0","status":"affected"},{"version":"> 4.0.0-canary.0, < 4.0.0-canary-34","status":"affected"}],"defaultStatus":null},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-pj5h-5q6c-3pfx","source_modified_at":"2026-10-07T20:45:05.788975222Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"payload","purl":"pkg:npm/payload"},"ranges":[{"events":[{"introduced":"3.0.0"},{"fixed":"3.90.0"}],"type":"SEMVER"}],"versions":[]},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-pj5h-5q6c-3pfx","source_modified_at":"2026-10-07T20:45:05.788975222Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"payload","purl":"pkg:npm/payload"},"ranges":[{"events":[{"introduced":"4.0.0-canary.0"},{"fixed":"4.0.0-canary.34"}],"type":"SEMVER"}],"versions":[]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-pj5h-5q6c-3pfx","source_modified_at":"2026-10-20T08:00:34Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"payload"},"version":"3.90.0"},{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-pj5h-5q6c-3pfx","source_modified_at":"2026-10-20T08:00:34Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"payload"},"version":"4.0.0-canary.34"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-pj5h-5q6c-3pfx","source_modified_at":"2026-10-07T20:45:05.788975222Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"payload","purl":"pkg:npm/payload"},"version":"3.90.0"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-pj5h-5q6c-3pfx","source_modified_at":"2026-10-07T20:45:05.788975222Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"payload","purl":"pkg:npm/payload"},"version":"4.0.0-canary.34"}],"cvss":7.2,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00135,"percentile":0.02715,"score_date":"2026-10-23"},"published_at":"2026-10-06T16:34:41.622Z","modified_at":"2026-10-20T08:00:34Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-pj5h-5q6c-3pfx","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-20T08:00:34Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-105861","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-06T17:39:16.866Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-pj5h-5q6c-3pfx","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-07T20:45:05.788975222Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-105861","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/payloadcms/payload/security/advisories/GHSA-pj5h-5q6c-3pfx","tags":["x_refsource_CONFIRM"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105861","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/payloadcms/payload/commit/ba5cf6ae20d27a2c15106cb37466419031f86e6d","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/payloadcms/payload/releases/tag/v3.90.0","tags":["x_refsource_MISC"]},{"url":"https://github.com/advisories/GHSA-pj5h-5q6c-3pfx","source":"GitHub Advisory Database"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-06T17:34:13.957850Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"ecosystem","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-20T08:00:34Z","content_hash":"c6886af50858d09e8d425f5ec5314db2010118554de1f8417b65a84549a163ac"}}