Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-50171

Severity CVSS v4.0:
HIGH
Type:
CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')
Publication date:
22/06/2026
Last modified:
09/07/2026

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.

Impact

Vector 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS v4.0 Severity and Metrics:

Base Score: 8.20 HIGH
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): Present
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): None
Integrity (VI): None
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0
8.20
Severity 4.0
HIGH
Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x
6.10
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* 18.2.14 (including)
cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* 19.0.0 (including) 19.2.23 (excluding)
cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* 20.0.0 (including) 20.3.22 (excluding)
cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* 21.0.0 (including) 21.2.15 (excluding)
cpe:2.3:a:angular:angular:22.0.0:next0:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next1:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next10:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next11:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next12:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next2:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next3:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next4:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next5:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next6:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next7:*:*:*:node.js:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools