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Medium severity6.1GHSA Advisory· Published Jun 22, 2026· Updated Jul 9, 2026

CVE-2026-50171

CVE-2026-50171

Description

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
@angular/commonnpm
>= 22.0.0-next.0, < 22.0.0-rc.222.0.0-rc.2
@angular/commonnpm
>= 20.0.0-next.0, < 20.3.2220.3.22
@angular/commonnpm
>= 19.0.0-next.0, < 19.2.2319.2.23
@angular/commonnpm
<= 18.2.14—
@angular/commonnpm
>= 21.0.0-next.0, < 21.2.1521.2.15

Affected products

29

Patches

Vulnerability mechanics

References

4

News mentions

1