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VulnerabilityPublished Updated

CVE-2026-41176: Rclone · Unauthenticated options/set allows runtime auth bypass, leading to sensitive operations and command execution

Affects rcloneSource GCVE Database

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Not known to be exploited · public detection template (Nuclei) · 32% EPSS : upgrade to 1.73.5 as a priority.

Data as of 29 Oct 2026, 19:04 UTC

Severity
Critical

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS
32.7% chance of exploitation in 30 days – higher than 98% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.73.5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Apr 2026

  2. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  3. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  4. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade rclone to 1.73.5.

Affected software

ProductAffectedFixed in
Bitnamirclonepkg:bitnami/rcloneOther threatsAffected
  • >=1.45.0 <1.73.5
Fixed in
  • 1.73.5

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available in Rclone version 1.73.5 that fixes this vulnerability. Users should upgrade to version 1.73.5 or later. Additionally, ensure the RC server is not started without authentication enabled. If upgrading is not immediately possible, configure the RC server to require authentication to prevent exploitation.

Description

Rclone versions from 1.45.0 up to but not including 1.73.5 contain a critical vulnerability in the Remote Control (RC) server. The exposed RC endpoint 'options/set' lacks authentication enforcement, allowing unauthenticated attackers to disable authorization for other RC methods. This enables unauthorized access to sensitive administrative functions and potentially command execution. The vulnerability is patched in version 1.73.5.

References

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