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Fencer Vulns
medium 6.1

CVE-2026-54265 json

Angular: Two-Way Property Binding Sanitization Bypass (XSS)

published 2026-06-15 4 mo ago modified 2026-09-10 1 mo ago also EUVD-2026-38268 , GHSA-58w9-8g37-x9v5

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 28%
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 22.0.1, 21.2.17, and 20.3.25, an issue in the @angular/compiler package allows bypassing DOM property sanitization through the use of two-way property bindings. Specifically, when a native DOM property that requires sanitization (such as innerHTML, srcdoc, src, href, data, or sandbox) is bound using the two-way binding syntax (e.g., [(innerHTML)]="value" or bindon-innerHTML="value"), the Angular template compiler failed to apply the appropriate schema-derived sanitizer resolution to the TwoWayProperty operation. As a result, native two-way DOM bindings were emitted without the required sanitizer function, whereas equivalent one-way bindings would be properly sanitized. This flaw enables an attacker who can control the value of a two-way bound sensitive property to bypass Angular's built-in sanitization logic, potentially leading to client-side Cross-Site Scripting (XSS). This vulnerability is fixed in 22.0.1, 21.2.17, and 20.3.25.

Patch / fix

  • npm @angular/compiler 20.3.25, 21.2.17, 22.0.1
  • angular angular 20.3.25, 21.2.17, 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-2026-54265 updated cvss 6.1

@angular/compiler: Angular: Two-Way Property Binding Sanitization Bypass (XSS)

  • Red Hat Advanced Cluster Management for Kubernetes 2 core 9.1.0 Red Hat build of Apicurio Registry 3 compiler 18.2.14
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Enterprise Linux 7 firefox, firefox 140.12.0-1.el10_2 Red Hat Enterprise Linux 8 firefox, grafana, mozjs60, thunderbird, grafana-loki, grafana-mssql, +14 more Red Hat Enterprise Linux 9 firefox, grafana, firefox-x11, thunderbird, grafana-selinux, gjs 1.80.2-11.el10, +3 more Red Hat Enterprise Linux 10 gjs 1.80.2-11.el10, grafana 10.2.6-26.el10_2, firefox 140.12.0-1.el10_2, thunderbird 140.12.0-1.el10_2 Red Hat JBoss Enterprise Application Platform Expansion Pack angular 1.8.0 Red Hat OpenStack Platform 16.2 qpid-dispatch-tools, qpid-dispatch-router
    +2 more products
    Red Hat Quay 3 quay/quay-rhel8, quay/quay-rhel9 Red Hat Single Sign-On 7 angular 1.8.0
    not affected: vulnerable code not present

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
4 mo ago

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
GitHub 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA 4.0 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/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, <21.2.17
>=20.0.0-next.0, <20.3.25
<=19.2.25
22.0.1
21.2.17
20.3.25

Affected products

  • angular angular

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.