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CVE-2026-73089

CVE-2026-73089 · Browserslist: Unbounded memory growth (no cache eviction) via distinct query results, leading to eventual OOM

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

Browserslist is a configuration tool for sharing target browsers and Node.js versions between front-end tools. Prior to 4.28.7, index.js retains every distinct `(queries, context)` result in cache and every parseQueries() AST in parseCache without a size cap, TTL, or eviction, allowing an attacker who can influence repeated browserslist() query values, including valid since `<year>-<month>-<day>` queries, to bypass the caller-controlled BROWSERSLIST_DISABLE_CACHE mitigation and cause linear memory growth followed by an out-of-memory process crash. This issue is fixed in version 4.28.7.

CVSS 7.5 · High · EPSS 0.7% · Fix available

Published
Updated

Stack: system · node

Affected products and versions

  • browserslist

    Versions
    • < 4.28.7: Affected

    No fix published

  • node-browserslist Debian:12

    Versions
    • 4.21.10+~cs6.1.25-1
    • 4.21.10+~cs6.1.25-2
    • 4.21.4+~cs6.1.17-2
    • 4.22.1+~cs6.1.27-1
    • 4.22.1+~cs6.1.28-1
    • 4.23.0+~cs6.1.32-1
    • 4.24.4+~cs6.3.21-1
    • 4.24.4+~cs6.3.22-1
    • 4.25.0+~cs6.3.22-1
    • 4.25.2+~cs6.3.22-1
    • 4.26.0+~cs8.11.27-1
    • 4.27.0+~cs8.11.53-1
    • 4.27.0+~cs8.11.53-2
    • 4.28.1+~cs8.14.48-1
    • 4.28.2+~cs8.14.68-1
    • 4.28.7+~cs8.16.65-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-browserslist Debian:13

    Versions
    • 4.25.0+~cs6.3.22-1
    • 4.25.2+~cs6.3.22-1
    • 4.26.0+~cs8.11.27-1
    • 4.27.0+~cs8.11.53-1
    • 4.27.0+~cs8.11.53-2
    • 4.28.1+~cs8.14.48-1
    • 4.28.2+~cs8.14.68-1
    • 4.28.7+~cs8.16.65-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-browserslist Debian:14

    Versions
    • 4.25.0+~cs6.3.22-1
    • 4.25.2+~cs6.3.22-1
    • 4.26.0+~cs8.11.27-1
    • 4.27.0+~cs8.11.53-1
    • 4.27.0+~cs8.11.53-2
    • 4.28.1+~cs8.14.48-1
    • 4.28.2+~cs8.14.68-1
    Affected ranges
    • ECOSYSTEM: < 4.28.7+~cs8.16.65-1

    Update to 4.28.7+~cs8.16.65-1

  • browserslist npm

    Affected ranges
    • SEMVER: < 4.28.7

    Update to 4.28.7

  • node-browserslist Ubuntu:18.04:LTS

    Versions
    • 2.11.3-1
    • 2.11.3-1build3
    • 2.11.3-1build4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-browserslist Ubuntu:20.04:LTS

    Versions
    • 2.11.3-1build4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-browserslist Ubuntu:22.04:LTS

    Versions
    • 4.16.3+~cs5.4.72-3
    • 4.17.0+~cs5.6.76-1
    • 4.18.1+~cs5.1.2-1
    • 4.19.1+~cs5.1.2-1
    • 4.19.1+repack+~cs5.1.2-2
    • 4.19.3+~cs5.1.3-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-browserslist Ubuntu:24.04:LTS

    Versions
    • 4.21.4+~cs6.1.17-2
    • 4.22.1+~cs6.1.28-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-browserslist Ubuntu:26.04:LTS

    Versions
    • 4.25.2+~cs6.3.22-1
    • 4.26.0+~cs8.11.27-1
    • 4.27.0+~cs8.11.53-2
    • 4.28.1+~cs8.14.48-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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