CVE-2026-116188

rclone: rclone serve s3 versions 1.75.0 before 1.75.2 contain an integer overflow vulnerability in multipart reorder-memory a...

CVE-2026-116188 is fixed in 3 products on 1 platform, first by ALAS2023-2026-3401, released November 10, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
n/a
important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0025
16th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
rclone · amzn 2023 1.75.2-1.amzn2023 ALAS2023-2026-3401 Nov 10, 2026
rclone-debuginfo · amzn 2023 1.75.2-1.amzn2023 ALAS2023-2026-3401 Nov 10, 2026
rclone-debugsource · amzn 2023 1.75.2-1.amzn2023 ALAS2023-2026-3401 Nov 10, 2026

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