CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2026-23881
Medium (6.5) in kyverno kyverno. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in github.com/kyverno/kyverno 1.15.3, 1.16.3.
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.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-31)
- CWE
- CWE-770
- Published
- Modified
- Record from
- the NVD, synced
Affected
- kyverno:kyverno
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-r2rj-wwm5-x6mq | Go | github.com/kyverno/kyverno | <1.15.3 | 1.15.3 |
| GHSA-r2rj-wwm5-x6mq | Go | github.com/kyverno/kyverno | >=1.16.0-rc.1 <1.16.3 | 1.16.3 |
| GO-2026-4382 | Go | github.com/kyverno/kyverno | <1.15.3 >=1.16.0-rc.1 <1.16.3 | 1.15.3, 1.16.3 |