Kyverno Denial of Service via Context Variable Amplification in Policy Engine (CVE-2026-23881)
Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3 and 1.15.3 have unbounded memory consumption in Kyverno's policy engine that allows users with policy creation privileges to cause denial of service by crafting policies that exponentially amplify string data through context variables. Versions 1.16.3 and 1.15.3 contain a patch for the vulnerability.
Kyverno Denial of Service via Context Variable Amplification in Policy Engine (CVE-2026-23881)
Description
Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3 and 1.15.3 have unbounded memory consumption in Kyverno's policy engine that allows users with policy creation privileges to cause denial of service by crafting policies that exponentially amplify string data through context variables. Versions 1.16.3 and 1.15.3 contain a patch for the vulnerability.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BIT-kyverno-2026-23881
- Osv Schema Version
- 1.6.2
- Aliases
- ["CVE-2026-23881"]
- Ecosystems
- ["Bitnami"]
- Database Specific Severity
- High
Patch Information
Threat ID: 6aa3299491cc7f3848d1b9ad
Added to database: 09/10/2026, 22:05:08 UTC
Last updated: 09/10/2026, 22:05:08 UTC
Views: 1
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