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Fencer Vulns
high 8.6

CVE-2025-46342 json

Kyverno vulnerable to bypass of policy rules that use namespace selectors in match statements

published 2025-04-29 18 mo ago modified 2026-09-10 1 mo ago also BIT-kyverno-2025-46342 , EUVD-2025-12613 , GHSA-jrr2-x33p-6hvc , GO-2025-3652

cvss
8.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

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.

Patch / fix

  • go github.com/kyverno/kyverno 1.13.5, 1.14.0
  • bitnami kyverno 1.13.5
  • kyverno kyverno 1.13.5, 1.14.0
  • nirmata kyverno 1.13.5, 1.14.0
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20250506T153719-1.1

opensuse advisories openSUSE-SU-2025:15059-1

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/kyverno/kyverno/security/advisories/GHSA-jrr2-x33p-6hvc referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 8.6 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
GitHub 3.1 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 8.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H
OSV 3.1 8.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H

Affected packages

ecosystem package affected fixed in
go github.com/kyverno/kyverno
<1.13.5
>=1.14.0-alpha.1, <1.14.0
1.13.5
1.14.0
bitnami kyverno
<1.13.5
1.13.5

Affected products

  • kyverno kyverno

Classification

Weakness
  • CWE-1287 Improper Validation of Specified Type of Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.