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Fencer Vulns
medium 6.1

CVE-2026-69151 json

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

published 2026-08-03 3 mo ago modified 2026-08-11 2 mo ago also GHSA-jj27-h5hq-8x99 , EUVD-2026-52369

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits
0
none known

Summary

Angular 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.

Patch / fix

  • npm @angular/compiler 20.3.27, 21.2.19, 22.0.1
  • npm @angular/core 20.3.27, 21.2.19, 22.0.1
  • angular angular 20.3.27, 21.2.19, 22.0.1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-69151 updated cvss 8.1

@angular/compiler: @angular/core: Angular: Cross-Site Scripting via internationalization event handlers

  • Red Hat Ceph Storage 4 ceph, librbd1, librgw2, rbd-nbd, ceph-mds, ceph-mgr, +27 more Red Hat Enterprise Linux 8 intel-cmt-cat 23.11-6.el10 Red Hat Enterprise Linux 9 librbd1, librados2, intel-cmt-cat 23.11-6.el10 Red Hat Enterprise Linux 10 ceph, intel-cmt-cat 23.11-6.el10
    affected: no fix available
  • Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/volsync-rhel9, rhacm2/volsync-operator-bundle Red Hat build of Apicurio Registry 3 apicurio/apicurio-registry-ui-rhel8
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 7 firefox, firefox 140.13.0-1.el10_2
    not affected: vulnerable code not in execute path
  • Red Hat Enterprise Linux 8 firefox, mozjs60, thunderbird, firefox 140.13.0-1.el10_2, thunderbird 140.12.0-1.el10_2, dotnet5.0-build-reference-packages 0-12.20211117git6ce5818.el8_5
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 9 firefox, firefox-x11, thunderbird, gjs 1.80.2-11.el10, firefox 140.13.0-1.el10_2, thunderbird 140.12.0-1.el10_2 Red Hat Enterprise Linux 10 gjs 1.80.2-11.el10, firefox 140.13.0-1.el10_2, thunderbird 140.12.0-1.el10_2
    not affected: vulnerable code not in execute path

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
3 mo ago

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 7.6 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
CNA 4.0 7.6 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
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
npm @angular/compiler
>=22.0.0-next.0, <22.0.1
>=21.0.0-next.0, <21.2.19
>=20.0.0-next.0, <20.3.27
<=19.2.25
22.0.1
21.2.19
20.3.27
npm @angular/core
>=22.0.0-next.0, <22.0.1
>=21.0.0-next.0, <21.2.19
>=20.0.0-next.0, <20.3.27
<=19.2.25
22.0.1
21.2.19
20.3.27

Affected products

  • angular angular
  • @angular compiler
  • @angular core

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.