HIGHCVSS v3.1 7.7Vulnerability
CVE-2026-122305
Kyverno before 1.19.2 contains a denial of service vulnerability in substituteVariablesIfAny that allows low-privileged users to hang the admission webhook via self-referential variable templates. Attackers can create resources whose annotations re-introduce the embedded policy variable, causing unbounded substitution loops that exhaust CPU and memory and block cluster-wide admission.
Properties
- Severity
- HIGH
- Nvd fetched at
- 2026-11-05T05:51:13.658545+00:00
- Cvss severity
- HIGH
- Cvss score
- 7.7
- Retrieved at
- 2026-11-05T05:52:17+00:00
- Score
- 7.7
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-122305
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- First seen by Signal
- 2026-11-05T05:47:49+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- Published at
- 2026-11-05T03:17:22.527
- Last modified
- 2026-11-05T03:17:22.527
Related Entities (1)
HAS_WEAKNESS (1)
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