CVE-2024-55949: Privilege escalation in IAM import API in MinIO

Severity: critical (CVSS 9.3 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-12-16 · updated 2026-06-17
Weakness: CWE-269

Description

MinIO is a high-performance, S3 compatible object store, open sourced under GNU AGPLv3 license. Minio is subject to a privilege escalation in IAM import API, all users are impacted since MinIO commit `580d9db85e04f1b63cc2909af50f0ed08afa965f`. This issue has been addressed in commit `f246c9053f9603e610d98439799bdd2a6b293427` which is included in RELEASE.2024-12-13T22-19-12Z. There are no workarounds possible, all users are advised to upgrade immediately.

Affected products

minio: from RELEASE.2022-06-25T15-50-16Z, < RELEASE.2024-12-13T22-19-12Z

References

https://github.com/minio/minio/commit/580d9db85e04f1b63cc2909af50f0ed08afa965f
https://github.com/minio/minio/commit/f246c9053f9603e610d98439799bdd2a6b293427
https://github.com/minio/minio/pull/20756
https://github.com/minio/minio/security/advisories/GHSA-cwq8-g58r-32hg

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