High 7.5Published Oct 25, 2026

CVE-2026-116189rclone 1.55.0 before 1.75.2 selfupdate Signature Verification Bypass via SHA256SUMS

Updated under an hour ago (Oct 27, 2026, 8:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-347
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Awaiting Analysis
Record last updated: Oct 25, 2026
First seen by InfoSec Signals: Oct 25, 2026

Affected products

Affected products

rclone rclone rclone:rclone (from the name)	from 1.55.0 before 1.75.2; 1.75.2 not affected	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.