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OpenAdvisories
High ALAS2-2026-3285 2 CVEs

Important: rclone security update (Amazon Linux 2)

Published May 11, 2026 · Updated May 13, 2026

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-41179: Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Starting in version 1.48.0 and prior to version 1.73.5, the RC endpoint `operations/fsinfo` is exposed without `AuthRequired: true` and accepts attacker-controlled `fs` input. Because `rc.GetFs(...)` supports inline backend definitions, an unauthenticated attacker can instantiate an attacker-controlled backend on demand. For the WebDAV backend, `bearer_token_command` is executed during backend initialization, making single-request unauthenticated local command execution possible on reachable RC deployments without global HTTP authentication. Version 1.73.5 patches the issue. CVE-2026-41176: Rclone is a command-line program to sync files and directories to and from different cloud storage providers. The RC endpoint `options/set` is exposed without `AuthRequired: true`, but it can mutate global runtime configuration, including the RC option block itself. Starting in version 1.45.0 and prior to version 1.73.5, an unauthenticated attacker can set `rc.NoAuth=true`, which disables the authorization gate for many RC methods registered with `AuthRequired: true` on reachable RC servers that are started without global HTTP authentication. This can lead to unauthorized access to sensitive administrative functionality, including configuration and operational RC methods. Version 1.73.5 patches the issue.

Fixed packages 2

ReleasePackageFixed in
Amazon Linux · 2 rclone 0:1.55.1-1.amzn2.0.5
Amazon Linux · 2 rclone-debuginfo 0:1.55.1-1.amzn2.0.5

Vulnerabilities 2

  • Critical 9.2
    CVE-2026-41176 Scanner template EPSS 33%

    Rclone: Unauthenticated options/set allows runtime auth bypass, leading to sensitive operations and command execution

    Rclone is a command-line program to sync files and directories to and from different cloud storage providers. The RC endpoint `options/set` is exposed without `AuthRequired: true`, but it can mutate global runtime configuration, including the RC option block …

  • Critical 9.2
    CVE-2026-41179 Public exploit Scanner template

    RClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command execution

    Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Starting in version 1.48.0 and prior to version 1.73.5, the RC endpoint `operations/fsinfo` is exposed without `AuthRequired: true` and accepts attac…

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-41176.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-41179.html