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CVE-2026-116188EUVD-2026-109446GHSA-6475-788V-W6C3GHSA-QJW8-8HMP-C3M6

rclone serve s3 1.75.0 before 1.75.2 Memory Limit Bypass via Multipart Overflow

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.75.2
None on Exploit-DB, Metasploit or GitHub

Summary

rclone serve s3 versions 1.75.0 before 1.75.2 contain an integer overflow vulnerability in multipart reorder-memory accounting that bypasses the configured buffer limit. Attackers can open two concurrent current-part PUT requests declaring huge lengths to wrap the signed int64 counter and retain out-of-order parts in memory, exhausting the host.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • rclone rclone

    From 1.75.0 · fixed in 1.75.2

References 2

GitHub · rclone/rclone

vulncheck.com