Allocation of Resources Without Limits or Throttling Affecting minio package, versions <0.20260410.215259-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.4% (32nd percentile)

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  • Snyk IDSNYK-WOLFILATEST-MINIO-17279188
  • published10 Jun 2026
  • disclosed8 Apr 2026

Introduced: 8 Apr 2026

CVE-2026-39414  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Wolfi minio to version 0.20260410.215259-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream minio package and not the minio package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

MinIO is a high-performance object storage system. From RELEASE.2018-08-18T03-49-57Z to before RELEASE.2025-12-20T04-58-37Z, MinIO's S3 Select feature is vulnerable to memory exhaustion when processing CSV files containing lines longer than available memory. The CSV reader's nextSplit() function calls bufio.Reader.ReadBytes('\n') with no size limit, buffering the entire input in memory until a newline is found. A CSV file with no newline characters causes the entire contents to be read into a single allocation, leading to an OOM crash of the MinIO server process. This is exploitable by any authenticated user with s3:PutObject and s3:GetObject permissions. The attack is especially practical when combined with compression: a ~2 MB gzip-compressed CSV can decompress to gigabytes of data without newlines, allowing a small upload to cause large memory consumption on the server. However, compression is not required — a sufficiently large uncompressed CSV with no newlines triggers the same issue.

CVSS Base Scores

version 3.1