CVE-2026-23881: GO-2026-4382 - Kyverno Denial of Service via Context Variable Amplification in Policy Engine in github.com/kyverno/kyverno

CVE-2026-23881 · Severity: low · CVSS 3.1 · Published 2026-02-02

Kyverno Denial of Service via Context Variable Amplification in Policy Engine in github.com/kyverno/kyverno

Technologies: github.com/kyverno/kyverno (Go). Vendors: Go.

Quick answers

Is CVE-2026-23881 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-23881 being exploited in the wild.
How severe is CVE-2026-23881?
Low severity, with a CVSS score of 3.1, published 2 February 2026.
Which products and versions are affected?
github.com/kyverno/kyverno (Go) SEMVER:introduced=0,fixed=1.15.3, SEMVER:introduced=0,fixed=1.15.3,introduced=1.16.0-rc.1,fixed=1.16.3.
Is there a fix for CVE-2026-23881?
Yes. github.com/kyverno/kyverno (Go): upgrade to 1.15.3, 1.16.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-23881?
Check whether you run github.com/kyverno/kyverno (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • github.com/kyverno/kyverno (Go): upgrade to 1.15.3, 1.16.3 or later
    go get github.com/kyverno/kyverno@v1.16.3

Affected products

  • github.com/kyverno/kyverno (Go) SEMVER:introduced=0,fixed=1.15.3, SEMVER:introduced=0,fixed=1.15.3,introduced=1.16.0-rc.1,fixed=1.16.3

Identifiers

  • CVE-2026-23881
  • GHSA-r2rj-wwm5-x6mq
  • GO-2026-4382

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