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CVE-2026-50171

CVE-2026-50171 · Angular: Denial of Service (DoS) via OOM in Number Formatting (digitsInfo)

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

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23, a Denial of Service (DoS) vulnerability exists in the @angular/common package of Angular. The formatNumber function, which is also utilized by DecimalPipe, PercentPipe, and CurrencyPipe, does not properly validate the upper bounds of the digitsInfo parameter. Specifically, the minimum and maximum fraction digits parsed from the digitsInfo string (e.g., 1.2-4) are converted to integers and used without limits. When parsing a maliciously crafted digitsInfo string with excessively large fraction digit values (e.g., 1.200000000-200000000), the internal roundNumber function attempts to pad the digits array to match the requested fraction size. This results in an unbounded loop that repeatedly pushes elements into an array. This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.

CVSS 8.2 · High · EPSS 0.3% · Fix available

Published
Updated

Stack: system · node

Affected products and versions

  • angular

    Versions
    • >= 22.0.0-next.0, < 22.0.0-rc.2: Affected
    • >= 21.0.0-next.0, < 21.2.15: Affected
    • >= 20.0.0-next.0, < 20.3.22: Affected
    • >= 19.0.0-next.0, < 19.2.23: Affected
    • <= 18.2.14: Affected

    No fix published

  • angular.js Debian:12

    Versions
    • 1.8.3-1
    • 1.8.3-1+deb12u1
    • 1.8.3-1+deb12u1~deb11u1
    • 1.8.3-2
    • 1.8.3-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • angular.js Debian:13

    Versions
    • 1.8.3-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • @angular/common npm

    Affected ranges
    • SEMVER: ≥ 22.0.0-next.0, < 22.0.0-rc.2

    Update to 22.0.0-rc.2

  • @angular/common npm

    Affected ranges
    • SEMVER: ≥ 20.0.0-next.0, < 20.3.22

    Update to 20.3.22

  • @angular/common npm

    Affected ranges
    • SEMVER: ≥ 19.0.0-next.0, < 19.2.23

    Update to 19.2.23

  • @angular/common npm

    Affected ranges
    • SEMVER: ≤ 18.2.14

    No fix published

  • @angular/common npm

    Affected ranges
    • SEMVER: ≥ 21.0.0-next.0, < 21.2.15

    Update to 21.2.15

  • angular.js Ubuntu:Pro:16.04:LTS

    Versions
    • 1.2.28-1ubuntu2
    • 1.2.28-1ubuntu2+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • angular.js Ubuntu:Pro:18.04:LTS

    Versions
    • 1.5.10-1
    • 1.5.10-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • angular.js Ubuntu:Pro:20.04:LTS

    Versions
    • 1.5.10-1
    • 1.7.9-1
    • 1.7.9-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • angular.js Ubuntu:22.04:LTS

    Versions
    • 1.8.2-2
    • 1.8.2-2ubuntu0.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • angular.js Ubuntu:24.04:LTS

    Versions
    • 1.8.3-1
    • 1.8.3-1ubuntu0.24.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • angular.js Ubuntu:25.10

    Versions
    • 1.8.3-1
    • 1.8.3-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • angular.js Ubuntu:26.10

    Versions
    • 1.8.3-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • angular.js Ubuntu:26.04:LTS

    Versions
    • 1.8.3-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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