CVE-2026-23990
Flux Operator Web UI Impersonation Bypass via Empty OIDC Claims in github.com/controlplaneio-fluxcd/flux-operator
5.3
MEDIUM
CVSS 3.1
EPSS 0.09%
Description
Flux Operator Web UI Impersonation Bypass via Empty OIDC Claims in github.com/controlplaneio-fluxcd/flux-operator
How to fix CVE-2026-23990
To remediate CVE-2026-23990, upgrade the affected package to a fixed version below.
- Go/github.com/controlplaneio-fluxcd/flux-operator—upgrade to 0.40.0 or later
- —upgrade to 0.40.0 or later
Is CVE-2026-23990 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 0.36.0, < 0.40.0
- >= 0.36.0, < 0.40.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |