CVE-2026-41423

HIGH EPSS 16.9%
Published May 8, 20261mo ago · Modified Jun 17, 20261w ago
8.7 CVSS 4.0
High
Find Similar
Published May 8, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to versions 19.2.21, 20.3.19, 21.2.9, and 22.0.0-next.8, a Server-Side Request Forgery (SSRF) vulnerability exists in @angular/platform-server due to improper handling of URLs during Server-Side Rendering (SSR). When an attacker sends a request such as GET /\evil.com/ HTTP/1.1 the server engine (Express, etc.) passes the URL string to Angular’s rendering functions. Because the URL parser normalizes the backslash to a forward slash for HTTP/HTTPS schemes, the internal state of the application is hijacked to believe the current origin is evil.com. This misinterpretation tricks the application into treating the attacker’s domain as the local origin. Consequently, any relative HttpClient requests or PlatformLocation.hostname references are redirected to the attacker controlled server, potentially exposing internal APIs or metadata services. This issue has been patched in versions 19.2.21, 20.3.19, 21.2.9, and 22.0.0-next.8.

CVSS Details

Base Score
8.7
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
16.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-918 Server-Side Request Forgery (SSRF) Validation

Affected Products 12

VendorProductVersionRange
angularangular* <19.2.21
angularangular*≥20.0.0  –  <20.3.19
angularangular*≥21.0.0  –  <21.2.9
angularangular22.0.0any
angularangular22.0.0any
angularangular22.0.0any
angularangular22.0.0any
angularangular22.0.0any
angularangular22.0.0any
angularangular22.0.0any
angularangular22.0.0any
angularangular22.0.0any

References 3

  • github.com https://github.com/angular/angular/commit/ede7c58a2aa13fdccc8f0b67ce93ba1c11749412
    Patch
  • github.com https://github.com/angular/angular/pull/68194
    Issue Tracking
  • github.com https://github.com/angular/angular/security/advisories/GHSA-45q2-gjvg-7973
    MitigationVendor Advisory

Remediation

  • github.com https://github.com/angular/angular/commit/ede7c58a2aa13fdccc8f0b67ce93ba1c11749412
    Patch