GHSA-2p48-j3qc-rx9f: github.com/rclone/rclone (CVE-2026-88045)

Package	Ecosystem	Affected	Fixed in
github.com/rclone/rclone	Go	>=1.75.0, <1.75.1	1.75.1

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

GHSA-2p48-j3qc-rx9f affects rclone versions 1.75.0 up to but not including 1.75.1, specifically the serve s3 streamed multipart mode. A network client can send an UploadPart request declaring a large Content-Length and send no body, causing the server to reserve memory proportional to that header value and potentially exhaust process or host memory. Anonymous access is possible when no auth_key is set; otherwise a valid S3 credential is needed. Upgrade to rclone 1.75.1, which contains the fix.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.5	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0063, the 50th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:13 UTC First seen by agentprime
31 Oct 2026, 14:13 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.