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TI-2025-21189 Aliases CVE-2025-29778GHSA-46mp-8w32-6g94

Kyverno ignores subjectRegExp and IssuerRegExp

Priority HIGH 68CWE-285Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-285.

Summary

Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to version 1.14.0-alpha.1, Kyverno ignores subjectRegExp and IssuerRegExp while verifying artifact's sign with keyless mode. It allows the attacker to deploy kubernetes resources with the artifacts that were signed by unexpected certificate. Deploying these unauthorized kubernetes resources can lead to full compromise of kubernetes cluster. Version 1.14.0-alpha.1 contains a patch for the issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00343 27th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed kyverno (kyverno): 1.14.0-alpha.1github.com/kyverno/kyverno (Go): 1.14.0-alpha.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
kyvernokyvernobefore 1.14.0-alpha.11.14.0-alpha.1Patch availableCNA
—github.com/kyverno/kyverno (Go)1.13.0 to before 1.14.0-alpha.11.14.0-alpha.1Patch availableGHSA-46mp-8w32-6g94
  • kyverno Vendorkyverno Affected before 1.14.0-alpha.1 Fixed in 1.14.0-alpha.1 Patch available CNA
  • github.com/kyverno/kyverno (Go) Vendor— Affected 1.13.0 to before 1.14.0-alpha.1 Fixed in 1.14.0-alpha.1 Patch available GHSA-46mp-8w32-6g94

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:kyverno:kyverno:*:*:*:*:*:*:*:*1.13.0 to before 1.13.6Vulnerablekyverno
  • cpe:2.3:a:kyverno:kyverno:*:*:*:*:*:*:*:* Versions 1.13.0 to before 1.13.6 Vulnerable ·kyverno

Remediation

  • Fix · CNA kyverno (kyverno) Fixed in 1.14.0-alpha.1
  • Fix · GHSA-46mp-8w32-6g94 github.com/kyverno/kyverno (Go) Fixed in 1.14.0-alpha.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-29778
  2. 2026-10-03 Alias added: GHSA-46mp-8w32-6g94

References

Exploit 2

Patch 1

Advisory 1

Other 3

  • TI-2026-17733 Kyverno Cross-Namespace Privilege Escalation via Policy apiCall CVSS 3.1CRITICAL 10.0
  • TI-2026-29924 Kyverno: ServiceAccount token leaked to external servers via apiCall service URL CVSS 3.1CRITICAL 9.1
  • TI-2026-29524 kyverno apicall servicecall implicit bearer token injection leaks kyverno serviceaccount token CVSS 3.1HIGH 8.1
  • TI-2026-30072 Kyverno Controller Denial of Service via forEach Mutation Panic CVSS 3.1HIGH 7.7
  • TI-2026-29707 Kyverno: Cross-Namespace Read Bypasses RBAC Isolation (CVE-2026-22039 Incomplete Fix) CVSS 3.1HIGH 7.7
  • TI-2026-19239 Kyverno Denial of Service via Context Variable Amplification in Policy Engine CVSS 3.1HIGH 7.7
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences