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CVE-2026-122322Kyverno from 1.11.0 before 1.19.2 Memory Exhaustion via Notary Attestation Decompression
Kyverno from 1.11.0 before 1.19.2 contains an unbounded decompression vulnerability in extractStatement that allows remote attackers to exhaust memory by supplying highly compressed attestation layers. Attackers controlling registry referrer artifacts can push gzip predicate layers exceeding maxPayloadSize when decompressed, causing admission controller OOM kills and denial of service.
8.7 HIGHEPSS 0.39%Not in KEVNVD: Undergoing Analysis
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.7 | HIGH | 4.0VulnCheck (CNA) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| 7.5 | HIGH | 3.1VulnCheck (CNA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Details
- CVE ID
- CVE-2026-122322
- Status
- Undergoing Analysis
- Assigner (CNA)
- VulnCheck
- Published
- Nov 5, 2026
- Last modified
- 2026-11-05 14:58 UTC
- Weaknesses
- CWE-409 · Improper Handling of Highly Compressed Data (Data Amplification)
Affected Products
As published by the CNA in the CVE record.
kyvernokyverno1 version range
- 1.11.0 before 1.19.2