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CVE-2026-122322

8.7 high

High (8.7) in kyverno kyverno.

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.

Severity

CVSS 4.0

8.7 high
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

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)
Published
Record from
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Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
kyvernofrom 1.11.0 before 1.19.2

References

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