Uncaught Exception Affecting github.com/kyverno/kyverno/pkg/engine/wildcards package, versions <1.14.2
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMKYVERNOKYVERNOPKGENGINEWILDCARDS-10878177
- published23 Jul 2025
- disclosed22 Jul 2025
- creditVille Vesilehto
Introduced: 22 Jul 2025
CVE-2025-47281 Â (opens in a new tab)How to fix?
Upgrade github.com/kyverno/kyverno/pkg/engine/wildcards to version 1.14.2 or higher.
Overview
Affected versions of this package are vulnerable to Uncaught Exception via improper handling of JMESPath variable substitutions in the getValueAsStringMap function within pkg/engine/wildcards/wildcards.go. An attacker can cause the admission controller and reports controller to crash by crafting a policy that uses a variable substitution with an invalid JMESPath function (e.g., {{@ | non_existent_function}}), resulting in a nil value where a string is expected. This triggers a panic and leads to service unavailability.
Note:
This is only exploitable if the attacker has permissions to create or update Policy or ClusterPolicy resources.