CVE-2026-33322

critical · 9.2

MinIO is a high-performance object storage system. From RELEASE.2022-11-08T05-27-07Z to before RELEASE.2026-03-17T21-25-16Z, a JWT algorithm confusion vulnerability in MinIO's OpenID Connect authentication allows an attacker who knows the OIDC ClientSecret to forge arbitrary identity tokens and obtain S3 credentials with any policy, including consoleAdmin. This issue has been patched in RELEASE.2026-03-17T21-25-16Z.

9.2

CVSS

0.4%

EPSS (exploit prob.)

35th

EPSS percentile

2026-03-24

Published

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/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

Weaknesses

CWE-287

Affected products

Vendor	Product	Affected versions
minio	minio	>= 2022-11-08t05-27-07z, < 2026-03-17t21-25-16z

Check a specific version with /api/v1/cve/match.

References

https://github.com/minio/minio/security/advisories/GHSA-5cx5-wh4m-82fh

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-33322