HIGHCVSS v4 8.8Vulnerability

CVE-2026-122267

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.

Properties

Severity
HIGH
Nvd fetched at
2026-11-06T06:16:30.423848+00:00
Cvss severity
HIGH
Cvss score
8.8
Retrieved at
2026-11-06T06:17:09+00:00
Score
8.8
Cvss version
4.0
Last source
NVD
Cve id
CVE-2026-122267
Cvss vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
First seen by Signal
2026-11-06T02:11:21+00:00
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published at
2026-11-05T22:17:55.117
Last modified
2026-11-05T22:17:55.117

Related Entities (1)

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CVE-2026-122267 (CVSS v4 8.8) — Ninja Signal Threat Intelligence | Ninja Signal