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CVE-2026-3219

CVE-2026-3219 · pip doesn't reject concatenated ZIP and tar archives

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

pip handles concatenated tar and ZIP files as ZIP files regardless of filename or whether a file is both a tar and ZIP file. This behavior could result in confusing installation behavior, such as installing "incorrect" files according to the filename of the archive. New behavior only proceeds with installation if the file identifies uniquely as a ZIP or tar archive, not as both.

CVSS 4.6 · Medium · EPSS 0.1% · Fix available

Published
Updated

Stack: system · python

Affected products and versions

  • pip

    Versions
    • ≥ 0, < 26.1: Affected (python)

    Update to 26.1

  • python-pip Debian:12

    Versions
    • 23.0.1+dfsg-1
    • 23.1.2+dfsg-1
    • 23.1.2+dfsg-2
    • 23.2+dfsg-1
    • 23.2.1+dfsg-1
    • 23.3+dfsg-1
    • 24.0+dfsg-1
    • 24.0+dfsg-2
    • 24.1+dfsg-1
    • 24.1.1+dfsg-1
    • 24.2+dfsg-1
    • 24.3.1+dfsg-1
    • 25.0+dfsg-1
    • 25.0.1+dfsg-1
    • 25.1+dfsg-1
    • 25.1.1+dfsg-1
    • 25.2+dfsg-1
    • 25.3+dfsg-1
    • 26.0+dfsg-1
    • 26.0.1+dfsg-1
    • 26.1.1+dfsg-1
    • 26.1.2+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-pip Debian:13

    Versions
    • 25.1.1+dfsg-1
    • 25.2+dfsg-1
    • 25.3+dfsg-1
    • 26.0+dfsg-1
    • 26.0.1+dfsg-1
    • 26.1.1+dfsg-1
    • 26.1.2+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-pip Debian:14

    Versions
    • 25.1.1+dfsg-1
    • 25.2+dfsg-1
    • 25.3+dfsg-1
    • 26.0+dfsg-1
    • 26.0.1+dfsg-1
    Affected ranges
    • ECOSYSTEM: < 26.1.1+dfsg-1

    Update to 26.1.1+dfsg-1

  • pip PyPI

    Versions
    • 0.2
    • 0.2.1
    • 0.3
    • 0.3.1
    • 0.4
    • 0.5
    • 0.5.1
    • 0.6
    • 0.6.1
    • 0.6.2
    • 0.6.3
    • 0.7
    • 0.7.1
    • 0.7.2
    • 0.8
    • 0.8.1
    • 0.8.2
    • 0.8.3
    • 1.0
    • 1.0.1
    • 1.0.2
    • 1.1
    • 1.2
    • 1.2.1
    • 1.3
    • 1.3.1
    • 1.4
    • 1.4.1
    • 1.5
    • 1.5.1
    • 1.5.2
    • 1.5.3
    • 1.5.4
    • 1.5.5
    • 1.5.6
    • 10.0.0
    • 10.0.0b1
    • 10.0.0b2
    • 10.0.1
    • 18.0
    • 18.1
    • 19.0
    • 19.0.1
    • 19.0.2
    • 19.0.3
    • 19.1
    • 19.1.1
    • 19.2
    • 19.2.1
    • 19.2.2
    • 19.2.3
    • 19.3
    • 19.3.1
    • 20.0
    • 20.0.1
    • 20.0.2
    • 20.1
    • 20.1.1
    • 20.1b1
    • 20.2
    • 20.2.1
    • 20.2.2
    • 20.2.3
    • 20.2.4
    • 20.2b1
    • 20.3
    • 20.3.1
    • 20.3.2
    • 20.3.3
    • 20.3.4
    • 20.3b1
    • 21.0
    • 21.0.1
    • 21.1
    • 21.1.1
    • 21.1.2
    • 21.1.3
    • 21.2
    • 21.2.1
    • 21.2.2
    • 21.2.3
    • 21.2.4
    • 21.3
    • 21.3.1
    • 22.0
    • 22.0.1
    • 22.0.2
    • 22.0.3
    • 22.0.4
    • 22.1
    • 22.1.1
    • 22.1.2
    • 22.1b1
    • 22.2
    • 22.2.1
    • 22.2.2
    • 22.3
    • 22.3.1
    • 23.0
    • 23.0.1
    • 23.1
    • 23.1.1
    • 23.1.2
    • 23.2
    • 23.2.1
    • 23.3
    • 23.3.1
    • 23.3.2
    • 24.0
    • 24.1
    • 24.1.1
    • 24.1.2
    • 24.1b1
    • 24.1b2
    • 24.2
    • 24.3
    • 24.3.1
    • 25.0
    • 25.0.1
    • 25.1
    • 25.1.1
    • 25.2
    • 25.3
    • 26.0
    • 26.0.1
    • 6.0
    • 6.0.1
    • 6.0.2
    • 6.0.3
    • 6.0.4
    • 6.0.5
    • 6.0.6
    • 6.0.7
    • 6.0.8
    • 6.1.0
    • 6.1.1
    • 7.0.0
    • 7.0.1
    • 7.0.2
    • 7.0.3
    • 7.1.0
    • 7.1.1
    • 7.1.2
    • 8.0.0
    • 8.0.1
    • 8.0.2
    • 8.0.3
    • 8.1.0
    • 8.1.1
    • 8.1.2
    • 9.0.0
    • 9.0.1
    • 9.0.2
    • 9.0.3
    Affected ranges
    • ECOSYSTEM: < 26.1

    Update to 26.1

  • python-pip Ubuntu:Pro:14.04:LTS

    Versions
    • 1.4.1-2
    • 1.5.4-1
    • 1.5.4-1ubuntu1
    • 1.5.4-1ubuntu3
    • 1.5.4-1ubuntu4
    • 1.5.4-1ubuntu4+esm1
    • 1.5.4-1ubuntu4+esm2
    • 1.5.4-1ubuntu4+esm3
    • 1.5.4-1ubuntu4+esm4
    • 1.5.4-1ubuntu4+esm5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-pip Ubuntu:Pro:16.04:LTS

    Versions
    • 1.5.6-7ubuntu1
    • 1.5.6-7ubuntu2
    • 8.0.2-7
    • 8.0.3-1
    • 8.0.3-2
    • 8.1.0-1
    • 8.1.0-2
    • 8.1.1-1
    • 8.1.1-2
    • 8.1.1-2ubuntu0.1
    • 8.1.1-2ubuntu0.2
    • 8.1.1-2ubuntu0.4
    • 8.1.1-2ubuntu0.6
    • 8.1.1-2ubuntu0.6+esm2
    • 8.1.1-2ubuntu0.6+esm3
    • 8.1.1-2ubuntu0.6+esm4
    • 8.1.1-2ubuntu0.6+esm5
    • 8.1.1-2ubuntu0.6+esm6
    • 8.1.1-2ubuntu0.6+esm8
    • 8.1.1-2ubuntu0.6+esm10
    • 8.1.1-2ubuntu0.6+esm11
    • 8.1.1-2ubuntu0.6+esm12
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-pip Ubuntu:Pro:18.04:LTS

    Versions
    • 9.0.1-2
    • 9.0.1-2.3~ubuntu1
    • 9.0.1-2.3~ubuntu1.18.04.1
    • 9.0.1-2.3~ubuntu1.18.04.2
    • 9.0.1-2.3~ubuntu1.18.04.3
    • 9.0.1-2.3~ubuntu1.18.04.4
    • 9.0.1-2.3~ubuntu1.18.04.5
    • 9.0.1-2.3~ubuntu1.18.04.5+esm2
    • 9.0.1-2.3~ubuntu1.18.04.5+esm3
    • 9.0.1-2.3~ubuntu1.18.04.6
    • 9.0.1-2.3~ubuntu1.18.04.6+esm1
    • 9.0.1-2.3~ubuntu1.18.04.7
    • 9.0.1-2.3~ubuntu1.18.04.7+esm1
    • 9.0.1-2.3~ubuntu1.18.04.8
    • 9.0.1-2.3~ubuntu1.18.04.8+esm1
    • 9.0.1-2.3~ubuntu1.18.04.8+esm2
    • 9.0.1-2.3~ubuntu1.18.04.8+esm4
    • 9.0.1-2.3~ubuntu1.18.04.8+esm6
    • 9.0.1-2.3~ubuntu1.18.04.8+esm7
    • 9.0.1-2.3~ubuntu1.18.04.8+esm8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-pip Ubuntu:Pro:20.04:LTS

    Versions
    • 18.1-5
    • 18.1-5build1
    • 18.1-5ubuntu1
    • 20.0.2-2
    • 20.0.2-4
    • 20.0.2-5
    • 20.0.2-5ubuntu1
    • 20.0.2-5ubuntu1.1
    • 20.0.2-5ubuntu1.3
    • 20.0.2-5ubuntu1.4
    • 20.0.2-5ubuntu1.5
    • 20.0.2-5ubuntu1.6
    • 20.0.2-5ubuntu1.7
    • 20.0.2-5ubuntu1.8
    • 20.0.2-5ubuntu1.9
    • 20.0.2-5ubuntu1.10
    • 20.0.2-5ubuntu1.10+esm2
    • 20.0.2-5ubuntu1.11
    • 20.0.2-5ubuntu1.11+esm2
    • 20.0.2-5ubuntu1.11+esm3
    • 20.0.2-5ubuntu1.11+esm4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-pip Ubuntu:Pro:22.04:LTS

    Versions
    • 20.3.4-4
    • 21.3.1+dfsg-3
    • 22.0.2+dfsg-1
    • 22.0.2+dfsg-1ubuntu0.1
    • 22.0.2+dfsg-1ubuntu0.2
    • 22.0.2+dfsg-1ubuntu0.3
    • 22.0.2+dfsg-1ubuntu0.4
    • 22.0.2+dfsg-1ubuntu0.5
    • 22.0.2+dfsg-1ubuntu0.6
    • 22.0.2+dfsg-1ubuntu0.7
    • 22.0.2+dfsg-1ubuntu0.7+esm1
    • 22.0.2+dfsg-1ubuntu0.7+esm2
    • 22.0.2+dfsg-1ubuntu0.7+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-pip Ubuntu:Pro:24.04:LTS

    Versions
    • 23.2+dfsg-1
    • 23.3+dfsg-1
    • 24.0+dfsg-1
    • 24.0+dfsg-1ubuntu1
    • 24.0+dfsg-1ubuntu1.1
    • 24.0+dfsg-1ubuntu1.2
    • 24.0+dfsg-1ubuntu1.3
    • 24.0+dfsg-1ubuntu1.3+esm1
    • 24.0+dfsg-1ubuntu1.3+esm2
    • 24.0+dfsg-1ubuntu1.3+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-pip Ubuntu:25.10

    Versions
    • 25.0+dfsg-1
    • 25.1.1+dfsg-1
    • 25.1.1+dfsg-1ubuntu1
    • 25.1.1+dfsg-1ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-pip Ubuntu:26.10

    Versions
    • 25.1.1+dfsg-1ubuntu2
    • 26.1.2+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-pip Ubuntu:Pro:26.04:LTS

    Versions
    • 25.1.1+dfsg-1ubuntu2
    • 25.1.1+dfsg-1ubuntu2+esm1
    • 25.1.1+dfsg-1ubuntu2+esm2
    • 25.1.1+dfsg-1ubuntu2+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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