CVE-2024-55949Public exploitNetwork attack vector

Privilege escalation via unchecked IAM import

Published Dec 16, 2024 · Updated Dec 16, 2024

Privilege escalation in MinIO before RELEASE.2024-12-13T22-19-12Z allows remote authenticated users to gain consoleAdmin access. The importIAM handler validates request signatures but fails to require ImportIAMAction before applying policy mappings from an uploaded iam-info.zip archive. Any nonanonymous account can rewrite its own user_mappings.json entry and obtain consoleAdmin privileges after a service restart.

CVSS severity9.3
Critical
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Privilege escalation in MinIO before RELEASE.2024-12-13T22-19-12Z allows remote authenticated users to gain consoleAdmin access. The importIAM handler validates request signatures but fails to require ImportIAMAction before applying policy mappings from an uploaded iam-info.zip archive. Any nonanonymous account can rewrite its own user_mappings.json entry and obtain consoleAdmin privileges after a service restart.

The record

CVE
CVE-2024-55949
Published
Dec 16, 2024
Updated
Dec 16, 2024
Vendor
MinIO
Product
MinIO
Classifications
CWE-269, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= RELEASE.2022-06-25T15-50-16Z, < RELEASE.2024-12-13T22-19-12Z

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MinIO · MinIOversion=>= RELEASE.2022-06-25T15-50-16Z, < RELEASE.2024-12-13T22-19-12Z

Published CVSS scores

9.3GitHub CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1098Account Manipulation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo