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CVE-2026-44705

CVE-2026-44705 · tmp: Path Traversal via unsanitized prefix/postfix enables directory escape

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

tmp is a temporary file and directory creator for node.js. Prior to 0.2.6, the tmp npm package contains a path traversal vulnerability that allows escaping the intended temporary directory when untrusted data flows into the prefix, postfix, or dir options. By embedding traversal sequences (e.g., ../) or path separators in these parameters, attackers can cause files to be created outside the configured temporary base directory at attacker-controlled locations with the privileges of the running process. This vulnerability affects applications that pass user-controlled data to tmp's file/directory creation functions without proper input sanitization. This vulnerability is fixed in 0.2.6.

CVSS 7.7 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: system · node

Affected products and versions

  • node-tmp

    Versions
    • < 0.2.6: Affected

    No fix published

  • node-tmp Debian:12

    Versions
    • 0.2.2+dfsg+~0.2.3-1
    • 0.2.2+dfsg+~0.2.3-1.1
    • 0.2.2+dfsg+~0.2.3-1.1~deb12u1
    • 0.2.2+dfsg+~0.2.3-1.1~deb13u1
    • 0.2.5+dfsg+~0.2.6-1
    • 0.2.5+dfsg+~0.2.6-2
    • 0.2.7+dfsg+~0.2.6-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tmp Debian:13

    Versions
    • 0.2.2+dfsg+~0.2.3-1
    • 0.2.2+dfsg+~0.2.3-1.1
    • 0.2.2+dfsg+~0.2.3-1.1~deb12u1
    • 0.2.2+dfsg+~0.2.3-1.1~deb13u1
    • 0.2.5+dfsg+~0.2.6-1
    • 0.2.5+dfsg+~0.2.6-2
    • 0.2.7+dfsg+~0.2.6-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tmp Debian:14

    Versions
    • 0.2.2+dfsg+~0.2.3-1
    • 0.2.2+dfsg+~0.2.3-1.1
    • 0.2.2+dfsg+~0.2.3-1.1~deb12u1
    • 0.2.2+dfsg+~0.2.3-1.1~deb13u1
    • 0.2.5+dfsg+~0.2.6-1
    • 0.2.5+dfsg+~0.2.6-2
    Affected ranges
    • ECOSYSTEM: < 0.2.7+dfsg+~0.2.6-1

    Update to 0.2.7+dfsg+~0.2.6-1

  • tmp npm

    Affected ranges
    • SEMVER: < 0.2.6

    Update to 0.2.6

  • node-tmp Ubuntu:16.04:LTS

    Versions
    • 0.0.25-1
    • 0.0.28-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tmp Ubuntu:18.04:LTS

    Versions
    • 0.0.31-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tmp Ubuntu:20.04:LTS

    Versions
    • 0.0.33+dfsg-2
    • 0.1.0+dfsg-2
    • 0.1.0+dfsg-3
    • 0.1.0+dfsg-6
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tmp Ubuntu:22.04:LTS

    Versions
    • 0.2.1+dfsg-1
    • 0.2.1+dfsg-2
    • 0.2.1+dfsg+~0.2.2-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tmp Ubuntu:24.04:LTS

    Versions
    • 0.2.2+dfsg+~0.2.3-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tmp Ubuntu:25.10

    Versions
    • 0.2.2+dfsg+~0.2.3-1
    • 0.2.2+dfsg+~0.2.3-1.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tmp Ubuntu:26.10

    Versions
    • 0.2.5+dfsg+~0.2.6-2
    • 0.2.7+dfsg+~0.2.6-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tmp Ubuntu:26.04:LTS

    Versions
    • 0.2.2+dfsg+~0.2.3-1.1
    • 0.2.5+dfsg+~0.2.6-1
    • 0.2.5+dfsg+~0.2.6-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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