Medium 6.5Published Jan 27, 2026

CVE-2026-23881Kyverno is a policy engine designed for cloud native platform engineering teams.

Updated under an hour ago (2026-10-19 07:30 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for kyverno

Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

kyverno kyverno kyverno:kyverno	before 1.15.3; from 1.16.0 before 1.16.3	NVD

References

https://github.com/kyverno/kyverno/commit/7a651be3a8c78dcabfbf4178b8d89026bf3b850fpatch
https://github.com/kyverno/kyverno/commit/f5617f60920568a301740485472bf704892175b7patch
https://github.com/kyverno/kyverno/security/advisories/GHSA-r2rj-wwm5-x6mqexploit, mitigation, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.