Is CVE-2026-33322 actively exploited?

CVE-2026-33322 has no public evidence of in-the-wild exploitation as of 2026-04-08.

What is the CVSS score for CVE-2026-33322?

CVE-2026-33322 has a CVSS score of 9.2 (CRITICAL severity). Vector: 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.

How do I patch CVE-2026-33322?

Patch guidance is available from minio security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-33322.

Fix CVE-2026-33322 - CRITICAL minio minio

Description

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.

CVSS Metrics

Vector: 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
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-287 · Improper Authentication

Metadata

Primary Vendor: MINIO
Published: 3/24/2026
Last Modified: 4/8/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-33322

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary