{"id":"CVE-2026-105844","state":"PUBLISHED","title":"Payload: Prototype pollution in Payload Import Export plugin","description":"Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an unauthenticated user can submit prototype-sensitive field paths when @payloadcms/plugin-import-export is enabled, causing unintended application behavior that can lead to remote code execution. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.","publishedAt":"2026-10-06T15:57:05.371Z","updatedAt":"2026-10-09T01:08:17.955Z","severity":{"score":9.3,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["payloadcms payload","@payloadcms plugin-import-export"],"affected":[{"vendor":"payloadcms","product":"payload","versions":[{"version":">= 3.0.0, < 3.88.0","status":"affected"},{"version":">= 4.0.0-canary.0, < 4.0.0-canary.27","status":"affected"}]},{"vendor":"@payloadcms","product":"plugin-import-export","versions":[{"version":">= 3.0.0, < 3.88.0","status":"affected"},{"version":">= 4.0.0-canary.0, < 4.0.0-canary.27","status":"affected"}]}],"references":["https://github.com/payloadcms/payload/security/advisories/GHSA-qf28-8hc6-vwrp","https://github.com/payloadcms/payload/commit/a742140ab4fca3160f7f83e9e7d996552ffc3b5a","https://github.com/payloadcms/payload/releases/tag/v3.88.0"],"weaknesses":["CWE-1321"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/105xxx/CVE-2026-105844.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105844","state":"PUBLISHED","datePublished":"2026-10-06T15:57:05.371Z","dateUpdated":"2026-10-09T01:08:17.955Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-05T23:06:29.747Z"},"containers":{"cna":{"title":"Payload: Prototype pollution in Payload Import Export plugin","descriptions":[{"lang":"en","value":"Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an unauthenticated user can submit prototype-sensitive field paths when @payloadcms/plugin-import-export is enabled, causing unintended application behavior that can lead to remote code execution. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27."}],"affected":[{"vendor":"payloadcms","product":"payload","versions":[{"version":">= 3.0.0, < 3.88.0","status":"affected"},{"version":">= 4.0.0-canary.0, < 4.0.0-canary.27","status":"affected"}]},{"vendor":"@payloadcms","product":"plugin-import-export","versions":[{"version":">= 3.0.0, < 3.88.0","status":"affected"},{"version":">= 4.0.0-canary.0, < 4.0.0-canary.27","status":"affected"}]}],"references":[{"url":"https://github.com/payloadcms/payload/security/advisories/GHSA-qf28-8hc6-vwrp","name":"https://github.com/payloadcms/payload/security/advisories/GHSA-qf28-8hc6-vwrp","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/payloadcms/payload/commit/a742140ab4fca3160f7f83e9e7d996552ffc3b5a","name":"https://github.com/payloadcms/payload/commit/a742140ab4fca3160f7f83e9e7d996552ffc3b5a","tags":["x_refsource_MISC"]},{"url":"https://github.com/payloadcms/payload/releases/tag/v3.88.0","name":"https://github.com/payloadcms/payload/releases/tag/v3.88.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":9.3,"baseSeverity":"CRITICAL","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1321","lang":"en","description":"CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-06T15:57:05.371Z"},"source":{"advisory":"GHSA-qf28-8hc6-vwrp","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-09T01:08:06.976631Z","id":"CVE-2026-105844","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-09T01:08:17.955Z"}}]}}}