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CVE-2025-29778: kyverno Improper Authorization

CVSS: 8.0v3.1HighAnalyzed
AliasesCGA-4vww-vh2j-93xhCGA-8p67-r476-jcp9CGA-h7j4-4w3p-6pg6
Published 24-03-2025Last modified 24-03-2025
Open JSON

Vulnerability summary

CVE-2025-29778 is a high (CVSS 8.0) Improper Authorization vulnerability in kyverno. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 26.3% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
42/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.0/10
010
High · v3.1 (NVD)
EPSS score
0.34%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2github

Advisory lineage

Upstream 0 · Downstream 1 · Related 4
OPENSUSE-SU-2025:14937-1CGA-RQJW-3M6C-8268CGA-V3PQ-G2J3-79RRCGA-X5RH-J66W-5JCM

Timeline

  1. 24-03-2025
    PublishedVulnerability first disclosed.
  2. 24-03-2025
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.34%

Chance of exploitation in the next 30 days

Percentile

26%

Versus all other CVEs

30-day change

+0.01 pp

From 0.33% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.34%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • githubUnverified

    Kyverno

    Maturity: poc

  • githubUnverified

    Policies

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Chainguard12 products
  • commercial-kyverno-1.13< 1.13.6-r0
  • commercial-kyverno-background-controller-1.13< 1.13.6-r0
  • commercial-kyverno-cleanup-controller-1.13< 1.13.6-r0
  • commercial-kyverno-reports-controller-1.13< 1.13.6-r0
  • commercial-kyvernopre-1.13< 1.13.6-r0
Wolfi2 products
  • kyverno-notation-aws< 1.1-r11
  • kyverno-notation-aws-compat< 1.1-r11
Github.com/kyverno1 product
  • kyverno≥ 1.13.0, < 1.14.0-alpha.1 | < 1.14.0-alpha.1
Kyverno1 product
  • kyverno< 1.14.0-alpha.1 | ≥ 1.13.0, < 1.13.6

4 vendors · 16 products

References

8 links