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CVE-2022-31116

CVE-2022-31116 · Incorrect handling of invalid surrogate pair characters in ujson

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

UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Affected versions were found to improperly decode certain characters. JSON strings that contain escaped surrogate characters not part of a proper surrogate pair were decoded incorrectly. Besides corrupting strings, this allowed for potential key confusion and value overwriting in dictionaries. All users parsing JSON from untrusted sources are vulnerable. From version 5.4.0, UltraJSON decodes lone surrogates in the same way as the standard library's `json` module does, preserving them in the parsed output. Users are advised to upgrade. There are no known workarounds for this issue.

CVSS 7.5 · High · EPSS 2.5% · Fix available

Published
Updated

Stack: system · python

Affected products and versions

  • ultrajson

    Versions
    • < 5.4.0: Affected

    No fix published

  • ujson Debian:12

    Affected ranges
    • ECOSYSTEM: < 5.4.0-1

    Update to 5.4.0-1

  • ujson Debian:13

    Affected ranges
    • ECOSYSTEM: < 5.4.0-1

    Update to 5.4.0-1

  • ujson Debian:14

    Affected ranges
    • ECOSYSTEM: < 5.4.0-1

    Update to 5.4.0-1

  • ujson PyPI

    Versions
    • 1.15
    • 1.18
    • 1.19
    • 1.21
    • 1.22
    • 1.23
    • 1.30
    • 1.33
    • 1.34
    • 1.35
    • 1.4
    • 1.6
    • 1.8
    • 1.9
    • 2.0.0
    • 2.0.1
    • 2.0.2
    • 2.0.3
    • 3.0.0
    • 3.1.0
    • 3.2.0
    • 4.0.0
    • 4.0.1
    • 4.0.2
    • 4.1.0
    • 4.2.0
    • 4.3.0
    • 5.0.0
    • 5.1.0
    • 5.2.0
    • 5.3.0
    Affected ranges
    • ECOSYSTEM: < 5.4.0

    Update to 5.4.0

  • pandas Ubuntu:14.04:LTS

    Versions
    • 0.12.0-2ubuntu1
    • 0.13.1-2ubuntu1
    • 0.13.1-2ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • ujson Ubuntu:Pro:16.04:LTS

    Versions
    • 1.33-1
    • 1.33-1build1
    Affected ranges
    • ECOSYSTEM: < 1.33-1ubuntu0.1~esm2

    Update to 1.33-1ubuntu0.1~esm2

  • collada2gltf Ubuntu:16.04:LTS

    Versions
    • 20140924-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pandas Ubuntu:16.04:LTS

    Versions
    • 0.15.0-2
    • 0.15.0-2ubuntu1
    • 0.15.0-2ubuntu2
    • 0.17.1-3ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • collada2gltf Ubuntu:18.04:LTS

    Versions
    • 20140924-4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pandas Ubuntu:18.04:LTS

    Versions
    • 0.19.2-5.1ubuntu4
    • 0.22.0-2ubuntu1
    • 0.22.0-3
    • 0.22.0-4
    • 0.22.0-4ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • ujson Ubuntu:Pro:18.04:LTS

    Versions
    • 1.35-1build2
    • 1.35-2
    Affected ranges
    • ECOSYSTEM: < 1.35-2ubuntu0.1~esm1

    Update to 1.35-2ubuntu0.1~esm1

  • pandas Ubuntu:20.04:LTS

    Versions
    • 0.23.3+dfsg-4ubuntu1
    • 0.23.3+dfsg-4ubuntu5
    • 0.23.3+dfsg-4ubuntu6
    • 0.25.3+dfsg-4
    • 0.25.3+dfsg-4build1
    • 0.25.3+dfsg-7
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • collada2gltf Ubuntu:22.04:LTS

    Versions
    • 20140924-7build1
    • 20140924-8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pandas Ubuntu:22.04:LTS

    Versions
    • 1.1.5+dfsg-2
    • 1.1.5+dfsg-2ubuntu1
    • 1.3.5+dfsg-2
    • 1.3.5+dfsg-2ubuntu1
    • 1.3.5+dfsg-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • ujson Ubuntu:Pro:22.04:LTS

    Versions
    • 4.0.2-1
    • 4.0.2-1build1
    • 4.2.0-1
    • 5.1.0-1
    • 5.1.0-1build1
    Affected ranges
    • ECOSYSTEM: < 5.1.0-1ubuntu0.1~esm1

    Update to 5.1.0-1ubuntu0.1~esm1

  • pandas Ubuntu:24.04:LTS

    Versions
    • 1.5.3+dfsg-6
    • 1.5.3+dfsg-6ubuntu1
    • 1.5.3+dfsg-7ubuntu1
    • 1.5.3+dfsg-10
    • 2.1.4+dfsg-4ubuntu2
    • 2.1.4+dfsg-7
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pandas Ubuntu:25.10

    Versions
    • 2.2.3+dfsg-8build1
    • 2.2.3+dfsg-9
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pandas Ubuntu:26.10

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

    No fix published

  • pandas Ubuntu:26.04:LTS

    Versions
    • 2.2.3+dfsg-9
    • 2.3.3+dfsg-1ubuntu1
    • 2.3.3+dfsg-3
    • 2.3.3+dfsg-3ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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