High · CVSS 7.7CVE-2026-116189

rclone 1.55.0 before 1.75.2 selfupdate Signature Verification Bypass via SHA256SUMSCVE-2026-116189

Answer in brief

CVE-2026-116189 records a High severity (CVSS 7.7) vulnerability in rclone 1.55.0 before 1.75.2 selfupdate Signature Verification Bypass via SHA256SUMS. The current sources do not mark it as known exploited. The current feed maps rclone/rclone (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 25, 2026Updated Oct 25, 2026Source checked Oct 25, 2026First seen by HOL Oct 25, 2026Material review Oct 25, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.7
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 7.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps rclone/rclone (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
rclone/rclonegeneric	>=1.55.0 <1.75.2	1.75.2

Recommended response

Check inventory. Check lockfiles and deployed manifests for rclone/rclone.
Review the reported fix. Update rclone/rclone to 1.75.2 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 25, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.