CVE-2026-84200Kyverno before v1.13.0 Policy Bypass via Multiple Exceptions
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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Kyverno versions v1.9.0 through v1.12.7 contain a policy exception handling flaw. When a policy in enforce mode is combined with two PolicyExceptions, the less restrictive exception takes precedence, allowing an attacker to bypass the policy by crafting a resource name that matches the second exception's name pattern (e.g., '*ingress*'). This can be used to circumvent policies such as one blocking hostPath volumes. Fixed in v1.13.0.
- CVSS
- 9.0 CRITICAL (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-284
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
kyverno kyverno kyverno:kyverno (from the name) | before 1.13.0; 1.13.0 not affected | CNA record |
References
- https://github.com/kyverno/kyverno/security/advisories/GHSA-gg4x-fgg2-h9w9vendor-advisory
- https://www.vulncheck.com/advisories/kyverno-before-1.13.0-policy-bypass-via-multiple-exceptionsthird-party-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.