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CVE-2026-84838

CVE-2026-84838 · Rpm: command injection in rpmuncompress via unescaped filenames passed to popen()

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

A flaw was found in rpmuncompress. This command injection vulnerability allows a local attacker to execute arbitrary commands. This occurs when rpmuncompress processes a specially crafted archive filename containing shell metacharacters, which are not properly escaped before being passed to shell command strings. Successful exploitation requires user interaction, where a user or automated workflow invokes rpmuncompress on the malicious file, leading to high impact on the confidentiality, integrity, and availability of data accessible to the invoking user.

CVSS 7.8 · High · EPSS 1.1%

Published
Updated

Stack: system

Affected products and versions

  • red hat hardened images

    Versions
    • ≥ 6.1.0-1.3.hum1: Not affected (rpm)

    No fix published

  • red hat enterprise linux 10

    No fix published

  • red hat enterprise linux 6

    No fix published

  • red hat enterprise linux 7

    No fix published

  • red hat enterprise linux 8

    No fix published

  • red hat enterprise linux 9

    No fix published

  • rpm Debian:12

    Versions
    • 4.18.0+dfsg-1
    • 4.18.0+dfsg-1+deb12u1
    • 4.18.2+dfsg-1
    • 4.18.2+dfsg-1.1~exp1
    • 4.18.2+dfsg-2
    • 4.18.2+dfsg-2.1
    • 4.18.2+dfsg-2.1~exp1
    • 4.19.1.1+dfsg-1
    • 4.19.1.1+dfsg-1~exp
    • 4.20.0+dfsg-1
    • 4.20.0+dfsg-2
    • 4.20.0+dfsg-3
    • 4.20.0+dfsg-4
    • 4.20.1+dfsg-1
    • 4.20.1+dfsg-2
    • 4.20.1+dfsg-3
    • 6.0.0-1
    • 6.0.0-2
    • 6.0.1-1
    • 6.1.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rpm Debian:13

    Versions
    • 4.20.1+dfsg-3
    • 6.0.0-1
    • 6.0.0-2
    • 6.0.1-1
    • 6.1.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rpm Debian:14

    Versions
    • 4.20.1+dfsg-3
    • 6.0.0-1
    • 6.0.0-2
    • 6.0.1-1
    • 6.1.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rpm Ubuntu:Pro:14.04:LTS

    Versions
    • 4.11.1-2
    • 4.11.1-3
    • 4.11.1-3ubuntu0.1
    • 4.11.1-3ubuntu0.1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rpm Ubuntu:Pro:16.04:LTS

    Versions
    • 4.12.0.1+dfsg1-3build2
    • 4.12.0.1+dfsg1-3build3
    • 4.12.0.1+dfsg1-3ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rpm Ubuntu:Pro:18.04:LTS

    Versions
    • 4.12.0.2+dfsg1-2build2
    • 4.14.0+dfsg1-2
    • 4.14.1+dfsg1-2
    • 4.14.1+dfsg1-2ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rpm Ubuntu:Pro:20.04:LTS

    Versions
    • 4.14.2.1+dfsg1-1
    • 4.14.2.1+dfsg1-1build1
    • 4.14.2.1+dfsg1-1build2
    • 4.14.2.1+dfsg1-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rpm Ubuntu:22.04:LTS

    Versions
    • 4.16.1.2+dfsg1-3ubuntu1
    • 4.16.1.2+dfsg1-3ubuntu3
    • 4.17.0+dfsg1-1
    • 4.17.0+dfsg1-3
    • 4.17.0+dfsg1-4
    • 4.17.0+dfsg1-4build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rpm Ubuntu:24.04:LTS

    Versions
    • 4.18.0+dfsg-1build1
    • 4.18.0+dfsg-1build2
    • 4.18.2+dfsg-1
    • 4.18.2+dfsg-2
    • 4.18.2+dfsg-2.1build1
    • 4.18.2+dfsg-2.1build2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rpm Ubuntu:26.10

    Versions
    • 6.0.1-1build1
    • 6.1.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rpm Ubuntu:26.04:LTS

    Versions
    • 4.20.1+dfsg-3
    • 6.0.0-2
    • 6.0.1-1
    • 6.0.1-1build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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