CVE-2026-122311

LOWCVSS 9.4 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Kyverno from 1.16.0 before 1.19.2 fails to validate path segments in the resource argument of resource.get() and resource.post(), allowing namespaced CEL policies to escape their namespace. Tenants who can create a NamespacedValidatingPolicy can insert .. segments to read and write arbitrary cluster objects using the admission controller's ServiceAccount, leading to cluster takeover.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-22

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-11-05: 111-05
Referenced assets1 URL
By indicator
Full discourse1 post
  • cve.new@cvedotnew

    CVE-2026-122311 · CRITICAL · CVSS 9.9 Kyverno versions 1.16.0 before 1.19.2 have a path traversal weakness, allowing namespaced CEL policies to escape their namespace. CVSS 3.1 · VulnCheck https://cve.new/CVE-2026-122311

    0000033
    393 followersView on X

Explore more