6.1

CVE-2026-50557: angular Cross-site Scripting

CVSS: 6.1v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-50557DEBIAN-CVE-2026-50557CGA-24hg-g6w3-37r3
Published 22-06-2026Last modified 22-06-2026
Open JSON

Vulnerability summary

CVE-2026-50557 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in angular. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 26.3% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
0.34%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-CJC5-9CMC-6PGH

Timeline

  1. 22-06-2026
    PublishedVulnerability first disclosed.
  2. 22-06-2026
    Last modifiedVulnerability information updated.

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 19.2.22, an issue in the @angular/compiler and @angular/core packages allows bypassing element and attribute sanitization/validation through specific namespace workarounds. Specifically, namespaced script elements (e.g., <svg:script> or <:svg:script>) were not properly identified as script elements by the Angular template preparser, allowing them to pass through template compilation without being stripped. Furthermore, security context schema mappings for element attributes did not consistently handle attributes within namespaced elements (like SVG and MathML), opening up gaps where malicious namespaced attributes could bypass runtime and compile-time sanitizers. Combined, these flaws enable an attacker who can inject or supply a template/tag structure with custom namespaces to bypass Angular's script-stripping logic and attribute sanitizers, leading to client-side Cross-Site Scripting (XSS). This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22 and 19.2.22.

CVSS metrics

10 scores · 7 sources · 2 versions

EPSS trend

Probability

0.34%

Chance of exploitation in the next 30 days

Percentile

26%

Versus all other CVEs

30-day change

0.00 pp

From 0.34% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.34%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard10 products
  • katib-earlystopping< 0.19.0-r31
  • katib-suggestion-goptuna-compatAll versions (No fix recorded)
  • katib-suggestion-hyperband< 0.19.0-r31
  • katib-suggestion-hyperopt< 0.19.0-r40 | < 0.19.0-r31
  • katib-suggestion-nas-darts< 0.19.0-r31
Wolfi10 products
  • katib-earlystopping< 0.19.0-r31
  • katib-suggestion-goptuna-compatAll versions (No fix recorded)
  • katib-suggestion-hyperband< 0.19.0-r31
  • katib-suggestion-hyperopt< 0.19.0-r40 | < 0.19.0-r31
  • katib-suggestion-nas-darts< 0.19.0-r31
@angular2 products
  • compiler≥ 21.0.0-next.0, < 21.2.15 | ≥ 22.0.0-next.0, < 22.0.0-rc.2 | ≥ 20.0.0-next.0, < 20.3.22 | ≥ 19.0.0-next.0, < 19.2.22 | ≤ 18.2.14
  • core≥ 21.0.0-next.0, < 21.2.15 | ≥ 22.0.0-next.0, < 22.0.0-rc.2 | ≥ 20.0.0-next.0, < 20.3.22 | ≥ 19.0.0-next.0, < 19.2.22 | ≤ 18.2.14
Angular1 product
  • angular≥ 21.0.0-next.0 < 21.2.15 (No fix recorded) | ≥ 22.0.0-next.0 < 22.0.0-rc.2 (No fix recorded) | ≥ 20.0.0-next.0 < 20.3.22 (No fix recorded) | ≥ 19.0.0-next.0 < 19.2.22 (No fix recorded) | ≤ 18.2.14 | ≥ 19.0.0, < 19.2.22 | ≥ 20.0.0, < 20.3.22 | ≥ 21.0.0, < 21.2.15 | 22.0.0:next0 | 22.0.0:next1 | 22.0.0:next10 | 22.0.0:next11 | 22.0.0:next12 | 22.0.0:next2 | 22.0.0:next3 | 22.0.0:next4 | 22.0.0:next5 | 22.0.0:next6 | 22.0.0:next7 | 22.0.0:next8 | 22.0.0:next9 | 22.0.0:rc0 | 22.0.0:rc1
Debian1 product
  • angular.jsAll versions (No fix recorded)
Ubuntu1 product
  • angular.jsAll versions (No fix recorded)

6 vendors · 25 products

References

9 links