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CVE-2026-59879

CVE-2026-59879 · Immutable.js `List` 32-bit trie overflow → unrecoverable DoS

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

Immutable.js provides many Persistent Immutable data structures. Prior to 4.3.9 and 5.1.8, List#set, List#setSize, List#setIn, List#updateIn, and the functional set, setIn, and updateIn mishandle an index or size in the range 2 ** 30 to 2 ** 31 in setListBounds in src/List.js, causing an empty List to enter an uncatchable infinite loop, a populated List to allocate without bound until process abort, or setSize to silently wrap large values. This issue is fixed in versions 4.3.9 and 5.1.8.

CVSS 8.7 · High · EPSS 0.6% · Fix available

Published
Updated

Stack: system · node

Affected products and versions

  • immutable-js

    Versions
    • >= 5.0.0-beta.1, < 5.1.8: Affected
    • < 4.3.9: Affected

    No fix published

  • node-immutable Debian:12

    Versions
    • 4.1.0-3
    • 4.3.4-1
    • 4.3.8-1
    • 4.3.8-2
    • 4.3.9-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-immutable Debian:13

    Versions
    • 4.3.4-1
    • 4.3.8-1
    • 4.3.8-2
    • 4.3.9-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-immutable Debian:14

    Versions
    • 4.3.4-1
    • 4.3.8-1
    • 4.3.8-2
    Affected ranges
    • ECOSYSTEM: < 4.3.9-1

    Update to 4.3.9-1

  • immutable npm

    Affected ranges
    • SEMVER: ≥ 4.0.0-rc.1, < 4.3.9

    Update to 4.3.9

  • immutable npm

    Affected ranges
    • SEMVER: ≥ 5.0.0-beta.1, < 5.1.8

    Update to 5.1.8

  • immutable npm

    Affected ranges
    • SEMVER: < 3.8.4

    Update to 3.8.4

  • node-immutable Ubuntu:20.04:LTS

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

    No fix published

  • node-immutable Ubuntu:22.04:LTS

    Versions
    • 3.8.2+dfsg-3
    • 4.0.0-1
    • 4.0.0-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-immutable Ubuntu:24.04:LTS

    Versions
    • 4.1.0-3
    • 4.3.4-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-immutable Ubuntu:25.10

    Versions
    • 4.3.4-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-immutable Ubuntu:26.10

    Versions
    • 4.3.8-2
    • 4.3.9-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-immutable Ubuntu:26.04:LTS

    Versions
    • 4.3.4-1
    • 4.3.8-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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