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.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
| Link | Providers |
|---|---|
| https://advisories.octopus.com/post/2026/sa2026-15 |
|
History
Tue, 27 Oct 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Inconsistent OIDC Token Issuer Validation Allows Unauthorized Token Acceptance |
Tue, 27 Oct 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Weaknesses | CWE-1289 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: Octopus
Published:
Updated: 2026-10-27T10:28:11.007Z
Reserved: 2026-10-27T00:58:00.462Z
Link: CVE-2026-116870
No data.
Status : Awaiting Analysis
Published: 2026-10-27T11:17:28.610
Modified: 2026-10-27T15:08:50.630
Link: CVE-2026-116870
No data.
OpenCVE Enrichment
Updated: 2026-10-27T11:30:13Z
Weaknesses