Back to CVE records
High 8.7Published Oct 27, 2026

CVE-2026-116870In affected versions of Octopus Server, OIDC token issuer validation was performed inconsistently.

Updated under an hour ago ()

Does this affect you?

It affects Octopus Deploy Octopus Server. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

In affected versions of Octopus Server, OIDC token issuer validation was performed inconsistently. This could result in a token issued from a suitably configured non legitimate issuer being accepted as a token belonging to a service account from a legitimate trusted issuer. Exploitation requires a service account with at least one OIDC identity configured. An attacker would also need to know or guess some details of that identity in order to be in a position to attempt exploitation.

CVSS
8.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE)
CWE-1289
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
Awaiting Analysis
Record last updated
Oct 27, 2026
First seen by InfoSec Signals
Oct 27, 2026

Affected products

Affected products
Octopus Deploy Octopus Server
octopus_deploy:octopus_server (from the name)
from 2024.1.0 before 2026.1.11781; from 2026.2.0 before 2026.2.13438; from 2026.3.0 before 2026.3.15816
CNA record

References

References

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.

Your cookie choices
We use essential cookies to run this site, and, only with your consent, an advertising cookie from Google to measure whether our ads lead to sign-ups and subscriptions. See our for details.