CVE-2026-33419: MinIO is a high-performance object storage system

Q: How do I fix CVE-2026-33419?

minio: upgrade to 2026-03-17t21-25-16z. Exact commands for each OS are on this page.

Q: Is CVE-2026-33419 being exploited?

CVE-2026-33419 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-33419 affect?

CVE-2026-33419 affects minio. Severity is high (CVSS 7.5). MinIO is a high-performance object storage system. Prior to RELEASE.2026-03-17T21-25-16Z, MinIO AIStor's STS (Security Token Service) AssumeRoleWithLDAPIdentity endpoint is vulnerable to LDAP credential brute-forcing due to two combined wea

Q: How urgent is CVE-2026-33419?

Priority 41/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2026-33419 is a high-severity flaw (CVSS 7.5) affecting minio. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

MinIO is a high-performance object storage system. Prior to RELEASE.2026-03-17T21-25-16Z, MinIO AIStor's STS (Security Token Service) AssumeRoleWithLDAPIdentity endpoint is vulnerable to LDAP credential brute-forcing due to two combined weaknesses: (1) distinguishable error responses that enable username enumeration, and (2) absence of rate limiting on authentication attempts. An unauthenticated network attacker can enumerate valid LDAP usernames

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 61%)
CISA exploited list	No
Weakness	CWE-204, CWE-307
Published	2026-03-24
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: minio

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-24 20:16 UTCPublished CVE record published
2026-06-17 10:37 UTCUpdated Record last modified

minio minio UPGRADE

Affected: < 2026-03-17t21-25-16z

Fixed in: 2026-03-17t21-25-16z

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy minio || rpm -q minio || minio --version

2. UPGRADE to 2026-03-17t21-25-16z (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade minio

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade minio

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33419?

minio: upgrade to 2026-03-17t21-25-16z. Exact commands for each OS are on this page.

Is CVE-2026-33419 being exploited?

CVE-2026-33419 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33419 affect?

CVE-2026-33419 affects minio. Severity is high (CVSS 7.5). MinIO is a high-performance object storage system. Prior to RELEASE.2026-03-17T21-25-16Z, MinIO AIStor's STS (Security Token Service) AssumeRoleWithLDAPIdentity endpoint is vulnerable to LDAP credential brute-forcing due to two combined wea

How urgent is CVE-2026-33419?

Priority 41/100. High severity; Remotely exploitable, no login, no user action

Software pages

MinIO vulnerabilities

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CVE-2026-40344 HIGH 8.2 UPGRADE MinIO is a high-performance object storage system
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References

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