What’s Vulnerable › Vulnerabilities

CVE-2026-84200: Kyverno before v1.13.0 Policy Bypass via Multiple Exceptions

• Severity: critical (CVSS 9.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-01 · updated 2026-09-10
• Weakness: CWE-284

Description

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.

Affected products

• kyverno: before 1.13.0 — fixed in 1.13.0

How to fix

Upgrade to a fixed version: kyverno 1.13.0. Check the vendor advisory for mitigations.

References

• https://github.com/kyverno/kyverno/security/advisories/GHSA-gg4x-fgg2-h9w9
• https://www.vulncheck.com/advisories/kyverno-before-1.13.0-policy-bypass-via-multiple-exceptions
• https://github.com/kyverno/kyverno/security/advisories/GHSA-gg4x-fgg2-h9w9

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