{"id":"CVE-2026-12887","state":"PUBLISHED","title":"In affected versions of Octopus Server, a user with permission to upload a malicious nuget package is able to deploy a script step so the script executes outside of the parent dire","description":"In affected versions of Octopus Server, a user with permission to upload a malicious nuget package is able to deploy a script step so the script executes outside of the parent directory.","publishedAt":"2026-10-27T13:15:22.608Z","updatedAt":"2026-10-27T13:15:22.608Z","severity":{"score":5.1,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","source":"Octopus"},"assigner":"Octopus","products":["Octopus Deploy Octopus Server"],"affected":[{"vendor":"Octopus Deploy","product":"Octopus Server","defaultStatus":"unaffected","versions":[{"version":"2023.0.0","status":"affected","lessThan":"2026.1.674","versionType":"custom"},{"version":"2026.1","status":"affected","lessThan":"2026.1.674","versionType":"custom"},{"version":"2026.2","status":"affected","lessThan":"2026.2.973","versionType":"custom"},{"version":"2026.3","status":"affected","lessThan":"2026.3.5839","versionType":"custom"}],"platforms":["Windows","Linux"]}],"references":["https://advisories.octopus.com/post/2026/sa2026-14/"],"weaknesses":[],"ingestedAt":"2026-10-29T20:10:52.580Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/12xxx/CVE-2026-12887.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-12887","state":"PUBLISHED","datePublished":"2026-10-27T13:15:22.608Z","dateUpdated":"2026-10-27T13:15:22.608Z","assignerShortName":"Octopus","assignerOrgId":"6f4f8c89-ef06-4bae-a2a5-6734ddf76272","dateReserved":"2026-06-22T10:55:01.254Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"In affected versions of Octopus Server, a user with permission to upload a malicious nuget package is able to deploy a script step so the script executes outside of the parent directory."}],"affected":[{"vendor":"Octopus Deploy","product":"Octopus Server","defaultStatus":"unaffected","versions":[{"version":"2023.0.0","status":"affected","lessThan":"2026.1.674","versionType":"custom"},{"version":"2026.1","status":"affected","lessThan":"2026.1.674","versionType":"custom"},{"version":"2026.2","status":"affected","lessThan":"2026.2.973","versionType":"custom"},{"version":"2026.3","status":"affected","lessThan":"2026.3.5839","versionType":"custom"}],"platforms":["Windows","Linux"]}],"references":[{"url":"https://advisories.octopus.com/post/2026/sa2026-14/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","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":"MEDIUM","baseScore":5.1,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Path Traversal in Octopus Server"}]}],"providerMetadata":{"shortName":"Octopus","orgId":"6f4f8c89-ef06-4bae-a2a5-6734ddf76272","dateUpdated":"2026-10-27T13:15:22.608Z"},"credits":[{"lang":"en","value":"This vulnerability was found by siddharthkathole62bb60","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}}}}}