{"id":"CVE-2026-105861","state":"PUBLISHED","title":"Payload external upload trust validation issue","description":"Payload is a free and open source headless content management system. In versions after 3.0.0 and before 3.90.0, authenticated external URL-based upload retrieval can forward authentication data to a redirected destination that was not verified as trusted, potentially exposing a valid session to an unintended recipient. This issue is fixed in version 3.90.0.","publishedAt":"2026-10-06T16:34:41.622Z","updatedAt":"2026-10-06T17:39:16.866Z","severity":{"score":7.2,"label":"High","version":"4.0","vector":"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","source":"GitHub_M"},"assigner":"GitHub_M","products":["payloadcms payload"],"affected":[{"vendor":"payloadcms","product":"payload","versions":[{"version":"> 3.0.0, < 3.90.0","status":"affected"},{"version":"> 4.0.0-canary.0, < 4.0.0-canary-34","status":"affected"}]}],"references":["https://github.com/payloadcms/payload/security/advisories/GHSA-pj5h-5q6c-3pfx","https://github.com/payloadcms/payload/commit/ba5cf6ae20d27a2c15106cb37466419031f86e6d","https://github.com/payloadcms/payload/releases/tag/v3.90.0"],"weaknesses":["CWE-200","CWE-346"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/105xxx/CVE-2026-105861.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105861","state":"PUBLISHED","datePublished":"2026-10-06T16:34:41.622Z","dateUpdated":"2026-10-06T17:39:16.866Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-05T23:06:29.748Z"},"containers":{"cna":{"title":"Payload external upload trust validation issue","descriptions":[{"lang":"en","value":"Payload is a free and open source headless content management system. In versions after 3.0.0 and before 3.90.0, authenticated external URL-based upload retrieval can forward authentication data to a redirected destination that was not verified as trusted, potentially exposing a valid session to an unintended recipient. This issue is fixed in version 3.90.0."}],"affected":[{"vendor":"payloadcms","product":"payload","versions":[{"version":"> 3.0.0, < 3.90.0","status":"affected"},{"version":"> 4.0.0-canary.0, < 4.0.0-canary-34","status":"affected"}]}],"references":[{"url":"https://github.com/payloadcms/payload/security/advisories/GHSA-pj5h-5q6c-3pfx","name":"https://github.com/payloadcms/payload/security/advisories/GHSA-pj5h-5q6c-3pfx","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/payloadcms/payload/commit/ba5cf6ae20d27a2c15106cb37466419031f86e6d","name":"https://github.com/payloadcms/payload/commit/ba5cf6ae20d27a2c15106cb37466419031f86e6d","tags":["x_refsource_MISC"]},{"url":"https://github.com/payloadcms/payload/releases/tag/v3.90.0","name":"https://github.com/payloadcms/payload/releases/tag/v3.90.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"ACTIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.2,"baseSeverity":"HIGH","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-346","lang":"en","description":"CWE-346: Origin Validation Error","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-06T16:34:41.622Z"},"source":{"advisory":"GHSA-pj5h-5q6c-3pfx","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-06T17:34:13.957850Z","id":"CVE-2026-105861","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-06T17:39:16.866Z"}}]}}}