{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-91778","assignerOrgId":"6f4f8c89-ef06-4bae-a2a5-6734ddf76272","state":"PUBLISHED","assignerShortName":"Octopus","dateReserved":"2026-09-15T01:38:15.839Z","datePublished":"2026-09-15T07:05:53.033Z","dateUpdated":"2026-09-15T14:40:42.112Z"},"containers":{"cna":{"providerMetadata":{"orgId":"6f4f8c89-ef06-4bae-a2a5-6734ddf76272","shortName":"Octopus","dateUpdated":"2026-09-15T07:08:54.502Z"},"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"affected":[{"vendor":"Octopus Deploy","product":"Octopus Server","platforms":["Windows","Linux"],"versions":[{"status":"affected","version":"2019.0.0","lessThan":"2026.1.11725","versionType":"custom"},{"status":"affected","version":"2026.2.0","lessThan":"2026.2.13344","versionType":"custom"},{"status":"affected","version":"2026.3.0","lessThan":"2026.3.11816","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"In affected versions of Octopus Server, users with certain scoped permission sets could execute arbitrary scripts on a worker (including the Octopus Server built-in worker). Incorrect permission validation during script execution would allow the script to execute without the user possessing the required authorisation.","supportingMedia":[{"type":"text/html","base64":false,"value":"In affected versions of Octopus Server, users with certain scoped permission sets could execute arbitrary scripts on a worker (including the Octopus Server built-in worker). Incorrect permission validation during script execution would allow the script to execute without the user possessing the required authorisation."}]}],"references":[{"url":"https://advisories.octopus.com/post/2026/sa2026-08"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","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":7.2,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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":"2026-09-15T14:39:41.923720Z","id":"CVE-2026-91778","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":"2026-09-15T14:40:42.112Z"}}]}}