Angular i18n: Cross-Site Scripting (XSS) via event-handler attributes

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-69151
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-03 17:16:45 UTC
Updated2026-08-03 17:38:23 UTC
DescriptionAngular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.27, 21.2.19, and 22.0.1, the Angular compiler i18n pipeline permits i18n-onerror and other i18n-on event-handler attributes, allowing a lower-trust translation file to replace a static handler with executable JavaScript. This issue is fixed in versions 20.3.27, 21.2.19, and 22.0.1.

Risk And Classification

Primary CVSS: v4.0 7.6 HIGH from [email protected]

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-79 | CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary7.6HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/C...
4.0CNADECLARED7.6HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
Passive
Confidentiality
High
Integrity
High
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Angular Angular affected >= 22.0.0-next.0, < 22.0.1 Not specified
CNA Angular Angular affected >= 21.0.0-next.0, < 21.2.19 Not specified
CNA Angular Angular affected < 20.3.27 Not specified
CNA @angular Compiler affected >= 22.0.0-next.0, < 22.0.1 Not specified
CNA @angular Compiler affected >= 21.0.0-next.0, < 21.2.19 Not specified
CNA @angular Compiler affected < 20.3.27 Not specified
CNA @angular Core affected >= 22.0.0-next.0, < 22.0.1 Not specified
CNA @angular Core affected >= 21.0.0-next.0, < 21.2.19 Not specified
CNA @angular Core affected < 20.3.27 Not specified

References

ReferenceSourceLinkTags
github.com/angular/angular/commit/6c41f5ca01c0ae045fc7d929b72853a11eb55865 [email protected] github.com
github.com/angular/angular/pull/69306 [email protected] github.com
github.com/angular/angular/commit/417a4071a776464d549509ed3aec121dbd2fda5e [email protected] github.com
github.com/angular/angular/security/advisories/GHSA-jj27-h5hq-8x99 [email protected] github.com
github.com/angular/angular/pull/68821 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
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