{"id":"CVE-2026-124318","state":"PUBLISHED","title":"Treeio through 2.0 Insecure Deserialization RCE via Admin-Editable Pickle Fields","description":"Treeio through 2.0 contains an insecure deserialization vulnerability in UpdateRecord.get_format_strings and ModuleSetting.loads that allows staff users to execute code via unverified pickle data. Attackers can store a crafted base64 pickle payload in an UpdateRecord format_strings field through the Django admin, executing Python code as the web server user when news feeds render.","publishedAt":"2026-11-07T14:17:57.859Z","updatedAt":"2026-11-07T14:17:57.859Z","severity":{"score":8.6,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["treeio treeio"],"affected":[{"vendor":"treeio","product":"treeio","packageURL":"pkg:github/treeio/treeio","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.0","versionType":"custom"}],"repo":"https://github.com/treeio/treeio"}],"references":["https://github.com/treeio/treeio/issues/165","https://github.com/treeio/treeio/blob/bae3115f4015aad2cbc5ab45572232ceec990495/treeio/core/models.py#L1101-L1109","https://github.com/treeio/treeio/blob/bae3115f4015aad2cbc5ab45572232ceec990495/treeio/core/models.py#L1265-L1273","https://github.com/treeio/treeio","https://www.vulncheck.com/advisories/treeio-through-2.0-insecure-deserialization-rce-via-admin-editable-pickle-fields"],"weaknesses":["CWE-502"],"ingestedAt":"2026-11-07T14:22:06.444Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/124xxx/CVE-2026-124318.json","commit":"5d35b2472b54e06eae81b39f4b7558075966f320","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-124318","state":"PUBLISHED","datePublished":"2026-11-07T14:17:57.859Z","dateUpdated":"2026-11-07T14:17:57.859Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-11-07T12:27:51.208Z"},"containers":{"cna":{"title":"Treeio through 2.0 Insecure Deserialization RCE via Admin-Editable Pickle Fields","descriptions":[{"lang":"en","value":"Treeio through 2.0 contains an insecure deserialization vulnerability in UpdateRecord.get_format_strings and ModuleSetting.loads that allows staff users to execute code via unverified pickle data. Attackers can store a crafted base64 pickle payload in an UpdateRecord format_strings field through the Django admin, executing Python code as the web server user when news feeds render."}],"affected":[{"vendor":"treeio","product":"treeio","packageURL":"pkg:github/treeio/treeio","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.0","versionType":"custom"}],"repo":"https://github.com/treeio/treeio"}],"references":[{"url":"https://github.com/treeio/treeio/issues/165","tags":["issue-tracking"]},{"url":"https://github.com/treeio/treeio/blob/bae3115f4015aad2cbc5ab45572232ceec990495/treeio/core/models.py#L1101-L1109","tags":["technical-description"]},{"url":"https://github.com/treeio/treeio/blob/bae3115f4015aad2cbc5ab45572232ceec990495/treeio/core/models.py#L1265-L1273","tags":["technical-description"]},{"url":"https://github.com/treeio/treeio","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/treeio-through-2.0-insecure-deserialization-rce-via-admin-editable-pickle-fields","name":"VulnCheck Advisory: Treeio through 2.0 Insecure Deserialization RCE via Admin-Editable Pickle Fields","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.6,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.2,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","lang":"en","description":"Deserialization of Untrusted Data","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-11-07T14:17:57.859Z"},"datePublic":"2026-11-06T00:00:00.000Z","tags":["unsupported-when-assigned"],"credits":[{"lang":"en","value":"MJ DHURGESH","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}}