HIGHCVSS v4 8.7Vulnerability

CVE-2026-116835

In affected versions of Octopus Server, insufficient validation of custom claims on OIDC accounts allowed a user with permission to edit accounts to cause Octopus Server to issue signed OIDC tokens that impersonate a different project. This could grant access to external systems, such as cloud providers or other Octopus instances, that trust that project's identity.

Properties

Severity
HIGH
Nvd fetched at
2026-11-14T00:40:25.638091+00:00
Epss score
0.00244
Cvss severity
HIGH
Cvss score
8.7
Retrieved at
2026-11-14T00:51:03+00:00
Last source
FIRST EPSS
Score
8.7
Cvss version
4.0
Cve id
CVE-2026-116835
Cvss vector
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
First seen by Signal
2026-11-12T15:57:02+00:00
Name
CVE-2026-116835
Vector
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published at
2026-11-12T14:17:23.630
Last modified
2026-11-12T19:02:35.830
Epss percentile
0.15711

Related Entities (1)

Related research

Explore deeper with Ninja Signal's threat intelligence graph

CVE-2026-116835 (CVSS v4 8.7) — Ninja Signal Threat Intelligence | Ninja Signal