CVE-2026-122306
Kyverno before 1.19.2 contains a denial of service vulnerability that allows namespaced policy…
- Risk score
- 46/100
- CVSS
- 7.7 v3.1
- Published
- 5 Nov 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Kyverno before 1.19.2 contains a denial of service vulnerability that allows namespaced policy authors to exhaust admission controller CPU by submitting pathological wildcard patterns. Attackers can create a Policy with crafted match and exclude names evaluated by ValidateMatchExcludeConflict, pinning cores and causin…
- Affected
- See advisory
- Fix
- Upgrade the product to 1.19.2 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.7 high
References
Original description
Kyverno before 1.19.2 contains a denial of service vulnerability that allows namespaced policy authors to exhaust admission controller CPU by submitting pathological wildcard patterns. Attackers can create a Policy with crafted match and exclude names evaluated by ValidateMatchExcludeConflict, pinning cores and causing cluster-wide webhook timeouts that block resource operations.
Last activity 5 Nov 2026. Patch Forecast updates every hour.