Back to CVE records
Medium 6.0Published Jun 4, 2026
CVE-2026-4881In affected versions of Octopus Server, permissions were not checked correctly resulting in any authenticated user being able to make server level changes using a certain API endpoint despite receivi…
Updated under an hour ago ()
Does this affect you?
It affects Octopus Deploy Octopus Server and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Start free and add your stack
Free account, 1 product
In affected versions of Octopus Server, permissions were not checked correctly resulting in any authenticated user being able to make server level changes using a certain API endpoint despite receiving an error.
- CVSS
- 6.0 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Octopus
- NVD analysis
- Analyzed
- Record last updated
- Jun 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Octopus Deploy Octopus Server octopus_deploy:octopus_server (from the name) | from 2023.0.0 before 2025.4.10523; from 2025.4.0 before 2025.4.10545; from 2026.1.0 before 2026.1.11313 | CNA record |
octopus octopus_server octopus:octopus_server | from 2023.1.4189 before 2025.4.10545; from 2026.1.675 before 2026.1.11313 | NVD |
References
- https://advisories.octopus.com/post/2026/sa2026-04vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.