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CVE-2026-79783

CVE-2026-79783 · rclone before 1.74.4 Privilege Escalation via setuid Metadata

This page contains facts from public vulnerability sources. Check the original advisory before updating.

rclone before 1.74.4 fails to mask special permission bits when applying source-supplied mode metadata in the local backend, allowing attackers to set setuid/setgid bits on attacker-controlled files. When copying with metadata preservation from an untrusted remote, attackers can plant a setuid binary that escalates privileges to root if rclone runs as root, or to the service account user otherwise.

CVSS 2.0 · Low · EPSS 0.2% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • rclone

    Versions
    • ≥ 0, < 1.74.4: Affected (semver)
    • 1.74.4: Not affected (semver)

    Update to 1.74.4

  • rclone Debian:12

    Versions
    • 1.60.1+dfsg-2
    • 1.60.1+dfsg-3
    • 1.60.1+dfsg-4
    • 1.65.0+dfsg-1
    • 1.65.0+dfsg-2
    • 1.69.3+dfsg-1
    • 1.69.3+dfsg-2
    • 1.69.3+dfsg-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rclone Debian:13

    Versions
    • 1.60.1+dfsg-4
    • 1.65.0+dfsg-1
    • 1.65.0+dfsg-2
    • 1.69.3+dfsg-1
    • 1.69.3+dfsg-2
    • 1.69.3+dfsg-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rclone Ubuntu:18.04:LTS

    Versions
    • 1.36-3
    • 1.36-3ubuntu0.1
    • 1.36-3ubuntu0.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rclone Ubuntu:Pro:20.04:LTS

    Versions
    • 1.47.0+ex1-6
    • 1.47.0+ex1-7
    • 1.49.5-2
    • 1.49.5-3
    • 1.50.2-2
    • 1.50.2-2ubuntu0.1
    • 1.50.2-2ubuntu0.2
    • 1.50.2-2ubuntu0.2+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rclone Ubuntu:Pro:22.04:LTS

    Versions
    • 1.53.3-1
    • 1.53.3-2
    • 1.53.3-4
    • 1.53.3-4ubuntu1
    • 1.53.3-4ubuntu1.22.04.1
    • 1.53.3-4ubuntu1.22.04.2
    • 1.53.3-4ubuntu1.22.04.3
    • 1.53.3-4ubuntu1.22.04.3+esm1
    • 1.53.3-4ubuntu1.22.04.4
    • 1.53.3-4ubuntu1.22.04.4+esm1
    • 1.53.3-4ubuntu1.22.04.5
    • 1.53.3-4ubuntu1.22.04.5+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rclone Ubuntu:Pro:24.04:LTS

    Versions
    • 1.60.1+dfsg-2build1
    • 1.60.1+dfsg-3
    • 1.60.1+dfsg-3ubuntu0.24.04.1
    • 1.60.1+dfsg-3ubuntu0.24.04.2
    • 1.60.1+dfsg-3ubuntu0.24.04.3
    • 1.60.1+dfsg-3ubuntu0.24.04.4
    • 1.60.1+dfsg-3ubuntu0.24.04.4+esm1
    • 1.60.1+dfsg-3ubuntu0.24.04.5
    • 1.60.1+dfsg-3ubuntu0.24.04.5+esm1
    • 1.60.1+dfsg-3ubuntu0.24.04.6
    • 1.60.1+dfsg-3ubuntu0.24.04.6+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rclone Ubuntu:26.10

    Versions
    • 1.60.1+dfsg-4ubuntu3
    • 1.69.3+dfsg-3
    • 1.69.3+dfsg-3ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rclone Ubuntu:Pro:26.04:LTS

    Versions
    • 1.60.1+dfsg-4ubuntu2
    • 1.60.1+dfsg-4ubuntu3
    • 1.60.1+dfsg-4ubuntu3.1
    • 1.60.1+dfsg-4ubuntu3.1+esm1
    • 1.60.1+dfsg-4ubuntu3.2
    • 1.60.1+dfsg-4ubuntu3.2+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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