CVE-2026-111753
What it is
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.34 and 21.0.3, the @angular/common HttpClient function xsrfInterceptorFn uses a regular expression that does not normalize request URLs in the same way as the browser's WHATWG URL parser. With XSRF protection enabled, a mutating HTTP request to an attacker-controlled URL containing backslashes, stripped control characters or spaces, or removable ASCII whitespace can be misclassified as relative and same-origin, causing the interceptor to attach the X-XSRF-TOKEN header before the browser dispatches the request to a cross-origin host. With permissive CORS handling for the custom header, the attacker can obtain the victim's XSRF token and use it to perform cross-site request forgery against the victim session. This issue is fixed in versions 20.3.34 and 21.0.3.
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure.
- Exploit odds
- 0.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.5% in the next 30 days (EPSS).
- Severity: 5.9 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.5% · EPSS, next 30 days
- Weakness
- CWE-201
- Record status
- Received
Attack profile CVSS 4.0 · 5.9
- Attack vector
- Network
- Complexity
- Low
- Attack requirements
- Present
- Privileges needed
- None
- User interaction
- Active
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Raw vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/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
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-111753.md and follow it. Check whether this project is affected by CVE-2026-111753. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/angular/angular/commit/20474d3f0fd7c64071add6e84acf720627e5c19b
- https://github.com/angular/angular/commit/933ce817d53e25926844fa56af8230816763d08e
- https://github.com/angular/angular/pull/65683
- https://github.com/angular/angular/pull/71295
- https://github.com/angular/angular/releases/tag/21.0.3
- https://github.com/angular/angular/releases/tag/v20.3.34
- https://github.com/angular/angular/security/advisories/GHSA-jfgx-762w-99vr
References
- https://github.com/angular/angular/commit/20474d3f0fd7c64071add6e84acf720627e5c19b
- https://github.com/angular/angular/commit/933ce817d53e25926844fa56af8230816763d08e
- https://github.com/angular/angular/issues/71294
- https://github.com/angular/angular/pull/65683
- https://github.com/angular/angular/pull/71295
- https://github.com/angular/angular/releases/tag/21.0.3
- https://github.com/angular/angular/releases/tag/v20.3.34
- https://github.com/angular/angular/security/advisories/GHSA-jfgx-762w-99vr