CVE-2026-53719
Envoy Gateway: Nil-dereference when SecurityPolicy targets TCPRoute without spec.authorization
Description
Vulnerability report without repro case. Repro case may be added later after harness is complete. **Preconditions (4):** - Tenant has SecurityPolicy + TCPRoute RBAC (baseline) - Tenant namespace permitted to attach TCPRoute to a Gateway listener - spec.authorization omitted (the trigger) - No admission webhook blocks the shape **Description:** A namespace-scoped tenant can deterministically panic the gatewayapi runner on every reconcile with a single CRD; the recover() in message/watchutil.go:53 keeps the process alive but unwinds the entire handle() callback in runner/runner.go:192, so xDS/Infra IR publishing stalls controller-wide until an admin deletes the object. Data plane keeps serving last-good config.
How to fix CVE-2026-53719
To remediate CVE-2026-53719, upgrade the affected package to a fixed version below.
- —upgrade to 1.8.1 or later
Is CVE-2026-53719 being exploited?
No exploitation signal available. Neither CISA KEV nor a current EPSS score has been published for CVE-2026-53719.
Affected packages (1)
- >= 1.8.0-rc.0, < 1.8.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |