CVE-2026-50557

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 89% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
6.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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., 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 v3
6.1
EG Score
6.1(medium)
EPSS
10.7%
KEV
Not listed

Published

June 15, 2026

Last Modified

June 26, 2026

Advisory Details (3)

Auto-updated Jun 22, 2026
Patch available. Sources: github_pr, github.
github Patch Available

Template and Attribute Namespace Sanitization Bypass (XSS) · Advisory · angular/angular · GitHub

https://github.com/angular/angular/security/advisories/GHSA-f3m7-gqxr-g87x
github_pr

fix(compiler): sanitize dynamic href and xlink:href bindings on SVG a…

Upstream fix in progress (PR #68868 · angular/angular, state=closed)

https://github.com/angular/angular/pull/68868
github_pr

fix(compiler): strip namespaced SVG script elements during template compilation

Fix merged in angular/angular PR #68689 on 2026-05-19 — awaiting tagged release

https://github.com/angular/angular/pull/68689

Vendor Advisories for CVE-2026-50557(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(2 across 1 ecosystem)
npm(2)
PackageVulnerable rangeFixed inDependents
@angular/compiler———
@angular/core———

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 32× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 00:21 UTCEG score recompute
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-05 11:28 UTCEG score recompute
  4. 2026-07-05 02:30 UTCEPSS rescore
  5. 2026-07-04 10:03 UTCEG score recompute
  6. 2026-07-04 06:31 UTCEPSS rescore
  7. 2026-07-03 07:59 UTCEG score recompute
  8. 2026-07-02 06:34 UTCEG score recompute
  9. 2026-07-01 15:07 UTCEPSS rescore
  10. 2026-07-01 05:08 UTCEG score recompute
  11. 2026-06-30 23:22 UTCEPSS rescore
  12. 2026-06-30 03:44 UTCEG score recompute
  13. 2026-06-29 14:06 UTCEPSS rescore
  14. 2026-06-29 14:06 UTCEPSS rescore
  15. 2026-06-29 02:20 UTCEG score recompute
  16. 2026-06-28 14:07 UTCEPSS rescore
  17. 2026-06-28 04:56 UTCEPSS rescore
  18. 2026-06-28 04:56 UTCEPSS rescore
  19. 2026-06-28 00:56 UTCEG score recompute
  20. 2026-06-27 03:08 UTCEPSS rescore
  21. 2026-06-26 23:32 UTCEG score recompute▲ 0.80
  22. 2026-06-26 19:41 UTCNVD updateCVSS v3 → 6.1
  23. 2026-06-25 22:07 UTCEG score recompute
  24. 2026-06-25 13:49 UTCEPSS rescore
  25. 2026-06-24 20:41 UTCEG score recompute
Show 7 more
  1. 2026-06-24 14:05 UTCEPSS rescore
  2. 2026-06-23 21:33 UTCEPSS rescore
  3. 2026-06-23 21:33 UTCEPSS rescore
  4. 2026-06-23 19:16 UTCEG score recompute
  5. 2026-06-22 17:51 UTCEG score recompute▲ 5.30
  6. 2026-06-22 17:45 UTCNVD updateCVSS v3 → 5.3 · CVSS v4 → 5.3
  7. 2026-06-15 17:46 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-50557?
CVE-2026-50557 is a medium vulnerability published on June 15, 2026. 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…
When was CVE-2026-50557 disclosed?
CVE-2026-50557 was first published in the National Vulnerability Database on June 15, 2026, with the most recent update on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50557 actively exploited?
CVE-2026-50557 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 10.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-50557?
CVE-2026-50557 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-50557?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50557, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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