HIGHCVSS v3.1 7.5Vulnerability
CVE-2026-122323
Kyverno from 1.11.0 before 1.19.2 contains an unbounded decompression vulnerability in FetchSignatureBlob that allows attackers to exhaust memory by supplying highly compressed notary signature layers. Attackers who control registry referrers or signatures can publish small gzip layers that decompress beyond maxPayloadSize, causing admission controller OOM kills and denial of service.
Properties
- Severity
- HIGH
- Nvd fetched at
- 2026-11-05T05:51:13.658545+00:00
- Cvss severity
- HIGH
- Cvss score
- 7.5
- Retrieved at
- 2026-11-05T05:52:17+00:00
- Score
- 7.5
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-122323
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- First seen by Signal
- 2026-11-05T05:47:49+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published at
- 2026-11-05T03:17:25.343
- Last modified
- 2026-11-05T03:17:25.343
Related Entities (1)
HAS_WEAKNESS (1)
Explore deeper with Ninja Signal's threat intelligence graph