{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-101169","assignerOrgId":"6f4f8c89-ef06-4bae-a2a5-6734ddf76272","state":"PUBLISHED","assignerShortName":"Octopus","dateReserved":"2026-09-28T09:09:50.229Z","datePublished":"2026-09-29T07:49:29.618Z","dateUpdated":"2026-09-29T16:46:34.454Z"},"containers":{"cna":{"providerMetadata":{"orgId":"6f4f8c89-ef06-4bae-a2a5-6734ddf76272","shortName":"Octopus","dateUpdated":"2026-09-29T07:49:29.618Z"},"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-502","description":"CWE-502: Deserialization of Untrusted Data","type":"CWE"}]}],"affected":[{"vendor":"Octopus Deploy","product":"Octopus Server","platforms":["Windows","Linux"],"versions":[{"status":"affected","version":"2019.4.1","lessThan":"2026.1.11781","versionType":"custom"},{"status":"affected","version":"2026.2.0","lessThan":"2026.2.13441","versionType":"custom"},{"status":"affected","version":"2026.3.0","lessThan":"2026.3.15829","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"In affected versions of Octopus Server, an authenticated user with permissions to edit an Environment or Project can set specifically crafted JSON content for the object. Insecure deserialization of this content allows the user to execute arbitrary code in the Octopus Server process.","supportingMedia":[{"type":"text/html","base64":false,"value":"In affected versions of Octopus Server, an authenticated user with permissions to edit an Environment or Project can set specifically crafted JSON content for the object. Insecure deserialization of this content allows the user to execute arbitrary code in the Octopus Server process."}]}],"references":[{"url":"https://advisories.octopus.com/post/2026/sa2026-10"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.7,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}],"credits":[{"lang":"en","value":"This vulnerability was found by Nathan Willoughby","type":"finder"}],"source":{"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-29T16:46:21.130403Z","id":"CVE-2026-101169","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-29T16:46:34.454Z"}}]}}