CVE-2026-116189: rclone rclone

CVSS 7.7 (high) · published 2026-10-25

rclone from 1.55.0 before 1.75.2 contains a signature verification bypass in stable selfupdate that trusts checksums from unsigned bytes preceding the PGP-clearsigned SHA256SUMS block. Attackers controlling the release distribution path can prepend an unsigned checksum line matching a malicious archive, causing selfupdate to install an attacker-controlled rclone executable.

Affected products (NVD): rclone rclone

Fixed in (NVD): 1.75.2

Weakness: CWE-347

Source: NVD CVE-2026-116189

References

• https://github.com/rclone/rclone/security/advisories/GHSA-w33h-3qgq-8mv8
• https://www.vulncheck.com/advisories/rclone-1.55.0-before-1.75.2-selfupdate-signature-verification-bypass-via-sha256sums
• https://github.com/rclone/rclone/security/advisories/GHSA-w33h-3qgq-8mv8

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