{"id":"CVE-2026-12887","aliases":[],"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…","titleSource":"Octopus","descriptionSource":"Octopus","products":[{"vendor":"Octopus Deploy","name":"Octopus Server","platforms":["Windows","Linux"],"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"}],"defaultStatus":"unaffected","source":"Octopus","url":"https://www.cve.org/CVERecord?id=CVE-2026-12887"}],"remediation":[],"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.","severity":"medium","score":5.1,"published":"2026-10-27T13:15:22.608Z","modified":"2026-10-27T13:15:22.608Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://advisories.octopus.com/post/2026/sa2026-14/"],"sources":[{"name":"CVE","id":"CVE-2026-12887","modified":"2026-10-27T13:15:22.608Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-12887"}],"assessments":[{"source":"Octopus","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","score":5.1}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T10:00:32.459Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}