CVE-2026-50171Network attack vector

Service interruption via unbounded fraction-digit padding

Published Jun 22, 2026 · Updated Jun 22, 2026

Resource exhaustion in Google Angular @angular/common allows remote attackers to crash SSR servers or freeze browser tabs. formatNumber accepts unbounded fraction-digit values from digitsInfo, and roundNumber repeatedly pads its digit array until memory or the main thread is exhausted. Exploitation requires an application to pass attacker-controlled digitsInfo to formatNumber, DecimalPipe, PercentPipe, or CurrencyPipe.

CVSS severity8.2
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Google Angular @angular/common allows remote attackers to crash SSR servers or freeze browser tabs. formatNumber accepts unbounded fraction-digit values from digitsInfo, and roundNumber repeatedly pads its digit array until memory or the main thread is exhausted. Exploitation requires an application to pass attacker-controlled digitsInfo to formatNumber, DecimalPipe, PercentPipe, or CurrencyPipe.

The record

CVE
CVE-2026-50171
Published
Jun 22, 2026
Updated
Jun 22, 2026
Vendor
Go standard library
Product
Angular
Classifications
CWE-834, CWE-400, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 18.2.14
  2. Affected versionversion=>= 19.0.0-next.0, < 19.2.23
  3. Affected versionversion=>= 20.0.0-next.0, < 20.3.22
  4. Affected versionversion=>= 21.0.0-next.0, < 21.2.15
  5. Affected versionversion=>= 22.0.0-next.0, < 22.0.0-rc.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Go standard library · Angularversion=<= 18.2.14; version=>= 19.0.0-next.0, < 19.2.23; version=>= 20.0.0-next.0, < 20.3.22; version=>= 21.0.0-next.0, < 21.2.15; version=>= 22.0.0-next.0, < 22.0.0-rc.2

Published CVSS scores

8.2GitHub, Inc.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
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-834Excessive Iteration
CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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