CVE-2026-91778
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.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.2
- CVSS vector
- 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
- EPSS probability
- 0.26%
- CWE
- CWE-863
- Published
- 2026-09-15
- Last modified
- 2026-09-15
Affected products
- Octopus Deploy Octopus Server
- Octopus Deploy Octopus Server
- Octopus Deploy Octopus Server
Weakness type
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