CVE-2026-122315— Kyverno before 1.19.2 Image Verification Bypass via Attestation Type Panic

Quick assessment

Affected

kyverno kyverno

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Kyverno 1.19.2 之前的版本在函数中存在未经检查的类型断言漏洞。该漏洞允许未认证的攻击者通过构造恶意的 attestation（认证）语句，导致策略引擎崩溃。攻击者可以推送包含非字符串类型字段的 OCI referrer 清单，从而在设置为时绕过镜像验证，或导致进入崩溃循环（crash-loop）。

CVSS 7.5 · High Updated Nov 05, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

Kyverno before 1.19.2 Image Verification Bypass via Attestation Type Panic

Source: CVE Program / CVE List V5

Vulnerability Description

Kyverno before 1.19.2 contains an unchecked type assertion in buildStatementMap that allows unauthenticated attackers to crash the policy engine via crafted attestation statements. Attackers can push an OCI referrer manifest with a non-string type field to bypass image verification under failurePolicy Ignore or crash-loop the reports-controller.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

未捕获的异常

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
kyverno	kyverno	0 ~ 1.19.2	-

II. Public POCs for CVE-2026-122315

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-122315

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Other References for CVE-2026-122315 (2)

https://github.com/kyverno/kyverno/security/advisories/GHSA-24cc-9745-hxfc vendor-advisory
https://www.vulncheck.com/advisories/kyverno-before-1.19.2-image-verification-bypass-via-attestation-type-panic third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-122315

Same Patch Batch · kyverno · 2026-11-05 · 21 CVEs total

CVE-2026-122313	9.9 CRITICAL	Kyverno 1.17.0 before 1.19.2 Cross-Namespace Privilege Escalation via NamespacedMutatingPo
CVE-2026-122303	9.9 CRITICAL	Kyverno 1.17.0 before 1.19.2 Cross-Namespace Resource Overwrite via NamespacedMutatingPoli
CVE-2026-122310	9.9 CRITICAL	Kyverno 1.19.1 before 1.19.2 Privilege Escalation via Policy apiCall urlPath
CVE-2026-122304	9.9 CRITICAL	Kyverno 1.17.0 before 1.19.2 Privilege Escalation via CleanupPolicy Context Loader
CVE-2026-122311	9.9 CRITICAL	Kyverno 1.16.0 before 1.19.2 Path Traversal in Namespaced CEL Policies via resource argume
CVE-2026-122302	9.8 CRITICAL	Kyverno before 1.19.2 Privilege Escalation via Generate Rule Permission Check
CVE-2026-122321	9.1 CRITICAL	Kyverno 1.18.0 before 1.19.2 verifyImages Cache Signature Verification Bypass
CVE-2026-122308	8.5 HIGH	Kyverno before 1.19.2 Label Spoofing via Generation Handler processRequest
CVE-2026-122316	8.5 HIGH	Kyverno 1.17.0 before 1.19.2 Cross-Namespace Write via NamespacedMutatingPolicy mutateExis
CVE-2026-122320	7.7 HIGH	Kyverno before 1.19.2 Cross-Namespace Resource Read via generate.clone
CVE-2026-122307	7.7 HIGH	Kyverno before 1.19.2 Policy Bypass via admissionpolicygenerator PolicyException Handling
CVE-2026-122318	7.7 HIGH	Kyverno before 1.19.2 Cosign Identity Check Bypass via Empty SAN Certificates
CVE-2026-122306	7.7 HIGH	Kyverno before 1.19.2 Denial of Service via Exponential-Time Wildcard Matching
CVE-2026-122312	7.7 HIGH	Kyverno 1.19.1 before 1.19.2 Namespace Isolation Bypass via APICall URLPath Query String
CVE-2026-122305	7.7 HIGH	Kyverno before 1.19.2 Denial of Service via Nested Variable Substitution Loop
CVE-2026-122319	7.5 HIGH	Kyverno before 1.19.2 Denial of Service via In/NotIn Operator Panic
CVE-2026-122322	7.5 HIGH	Kyverno from 1.11.0 before 1.19.2 Memory Exhaustion via Notary Attestation Decompression
CVE-2026-122323	7.5 HIGH	Kyverno 1.11.0 before 1.19.2 Memory Exhaustion via Notary Signature Decompression
CVE-2026-122314	7.5 HIGH	Kyverno before 1.19.2 Denial of Service via Shallow Variable Substitution Panic
CVE-2026-122309	6.2 MEDIUM	Kyverno before 1.19.2 Denial of Service via Unbounded CEL Policy Evaluation Cost

IV. Related Vulnerabilities

Same product: kyverno

Same vendor: kyverno

Same weakness: CWE-248