CVE-2026-23881

HIGH

7.7

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.

CVE Details

CVSS v3.1 Score7.7

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published1/27/2026

Last Modified2/2/2026

Sourcenvd

Honeypot Sightings0

Affected Products

kyverno:kyverno

Weaknesses (CWE)

CWE-770

References

https://github.com/kyverno/kyverno/commit/7a651be3a8c78dcabfbf4178b8d89026bf3b850f(security-advisories@github.com)

https://github.com/kyverno/kyverno/commit/f5617f60920568a301740485472bf704892175b7(security-advisories@github.com)

https://github.com/kyverno/kyverno/security/advisories/GHSA-r2rj-wwm5-x6mq(security-advisories@github.com)

IOC Correlations

No correlations recorded

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