Dashboard / CVE-2026-122267

CVE-2026-122267

HIGH
MEDIUM Priority: 0.02 BB Relevance: 78/100
Published: 2026-11-05 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
AT: None
VC: High
VI: Low
VA: None

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
Chainguard MinIO 0

References & Advisories (1)

Bug Bounty Relevance

78 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

8.8 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.20%
Raw Score 0.001990
Percentile 9.8%
Date 2026-11-06

Intelligence Sources

mitre ref →
nvd ref →

External Links