High severityNVD Advisory· Published Nov 5, 2026

CVE-2026-122267

Description

MinIO Signature V4 verification before RELEASE.2026-09-22T19-25-18Z accepts unsigned x-amz-* headers, letting a presigned PUT URL be escalated into a cross-bucket read.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Chainguard Forks/miniollm-create
Range: <=RELEASE.2026-09-22T19-25-18Z
Minio/Miniollm-fuzzy
Range: <=RELEASE.2026-09-22T19-25-18Z

Patches

Vulnerability mechanics

References

github.com/chainguard-forks/minio/security/advisories/GHSA-48rv-pgqh-mhjgnvd

News mentions

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cvss	0.455
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000