CVE-2026-41485 (GCVE-0-2026-41485)
Vulnerability from cvelistv5 – Published: 2026-04-24 03:27 – Updated: 2026-04-24 03:27
VLAI?
Title
Kyverno Controller Denial of Service via forEach Mutation Panic
Summary
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.17.2 and 1.16.4, an unchecked type assertion in the `forEach` mutation handler allows any user with permission to create a `Policy` or `ClusterPolicy` to crash the cluster-wide background controller into a persistent CrashLoopBackOff. The same bug also causes the admission controller to drop connections and block all matching resource operations. The crash loop persists until the policy is deleted. The vulnerability is confined to the legacy engine, and CEL-based policies are unaffected. Versions 1.17.2 and 1.16.4 fix the issue.
Severity ?
7.7 (High)
CWE
- CWE-617 - Reachable Assertion
Assigner
References
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|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
{
"containers": {
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"affected": [
{
"product": "kyverno",
"vendor": "kyverno",
"versions": [
{
"status": "affected",
"version": "\u003c 1.16.4"
},
{
"status": "affected",
"version": "\u003e= 1.17.0-rc1, \u003c 1.17.2"
}
]
}
],
"descriptions": [
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}
],
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
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"description": "CWE-617: Reachable Assertion",
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"providerMetadata": {
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"shortName": "GitHub_M"
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"references": [
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"name": "https://github.com/kyverno/kyverno/security/advisories/GHSA-fpjq-c37h-cqcv",
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],
"url": "https://github.com/kyverno/kyverno/security/advisories/GHSA-fpjq-c37h-cqcv"
},
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"source": {
"advisory": "GHSA-fpjq-c37h-cqcv",
"discovery": "UNKNOWN"
},
"title": "Kyverno Controller Denial of Service via forEach Mutation Panic"
}
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"dateReserved": "2026-04-20T16:14:19.007Z",
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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