CVE-2025-66035

HIGHPre-NVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.7 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 59% 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
7.7
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.7Exploit: 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 versions 19.2.16, 20.3.14, and 21.0.1, there is a XSRF token leakage via protocol-relative URLs in angular HTTP clients. The vulnerability is a Credential Leak by App Logic that leads to the unauthorized disclosure of the Cross-Site Request Forgery (XSRF) token to an attacker-controlled domain. Angular's HttpClient has a built-in XSRF protection mechanism that works by checking if a request URL starts with a protocol (http:// or https://) to determine if it is cross-origin. If the URL starts with protocol-relative URL (//), it is incorrectly treated as a same-origin request, and the XSRF token is automatically added to the X-XSRF-TOKEN header. This issue has been patched in versions 19.2.16, 20.3.14, and 21.0.1. A workaround for this issue involves avoiding using protocol-relative URLs (URLs starting with //) in HttpClient requests. All backend communication URLs should be hardcoded as relative paths (starting with a single /) or fully qualified, trusted absolute URLs.

CVSS v3
7.7
EG Score
7.7(medium)
EG Risk
—
EPSS
44.4%
KEV
Not listed

Published

November 26, 2025

Last Modified

June 17, 2026

Advisory Details (9)

Auto-updated Jun 6, 2026
Patch available. Sources: github_commit, github_release, github.
generic

SSA-485750

https://cert-portal.siemens.com/productcert/html/ssa-485750.html
generic

SSA-253495

https://cert-portal.siemens.com/productcert/html/ssa-253495.html
github Patch Available

XSRF Token Leakage via Protocol-Relative URLs in Angular HTTP Client · Advisory · angular/angular · GitHub

https://github.com/angular/angular/security/advisories/GHSA-58c5-g7wp-6w37
github_release Patch Available

21.0.1

Patch available: angular/angular 21.0.1

https://github.com/angular/angular/releases/tag/21.0.1
github_release Patch Available

20.3.14

Patch available: angular/angular 20.3.14

https://github.com/angular/angular/releases/tag/20.3.14
github_release Patch Available

19.2.16

Patch available: angular/angular 19.2.16

https://github.com/angular/angular/releases/tag/19.2.16
github_commit

commit 3240d856d942 (angular/angular)

Fix landed in angular/angular commit 3240d856d942 — awaiting tagged release

https://github.com/angular/angular/commit/3240d856d942727372a705252f7c8c115394a41e
github_commit

commit 05fe6686a97f (angular/angular)

Fix landed in angular/angular commit 05fe6686a97f — awaiting tagged release

https://github.com/angular/angular/commit/05fe6686a97fa0bcd3cf157805b3612033f975bc
github_commit Patch Available

commit 0276479e7d0e (angular/angular)

Patch available: angular/angular v20.3.19 (contains commit 0276479e7d0e)

https://github.com/angular/angular/commit/0276479e7d0e280e0f8d26fa567d3b7aa97a516f

Vendor Advisories for CVE-2025-66035(1)

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

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
@angular/common—19.2.16—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 45× 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.

Showing the most recent 100 of 115 total refreshes for this CVE.

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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-66035?
CVE-2025-66035 is a high vulnerability published on November 26, 2025. Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to versions 19.2.16, 20.3.14, and 21.0.1, there is a XSRF token leakage via protocol-relative URLs in angular HTTP clients. The vulnerability is a Credential…
When was CVE-2025-66035 disclosed?
CVE-2025-66035 was first published in the National Vulnerability Database on November 26, 2025, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-66035 actively exploited?
CVE-2025-66035 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 44.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-66035?
CVE-2025-66035 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2025-66035?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-66035, 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.

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