CVE-2026-91778CWE-863broken-access-control

CVE-2026-91778

published September 15, 2026

CVSS
7.2
EPSS
0%
Percentile
36.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
7.2 · NONE
CVSS v4.0
7.2 · 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
0.00435 · 36.8th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-09-15T12:17Z
References (1)
https://advisories.octopus.com/post/2026/sa2026-08 · [email protected]
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 15 SEP 07:05Z
    In affected versions of Octopus Server, users with certain scoped permission sets could execute arbitrary scripts on a worker (including the Octopus Server…
    cvelistv5