Description
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.27, 21.2.19, and 22.0.2, HttpTransferCache comma-joins repeated request parameters, allowing semantically distinct HttpClient requests to use the same transfer-cache key and reuse a wrong backend response. This issue is fixed in versions 20.3.27, 21.2.19, and 22.0.2.
Affected products
angular: angular
References6
- github.com/angular/angular/security/advisories/GHSA-jhpw-976m-5… Vendor Advisory
- github.com/angular/angular/commit/6867f77ec779a0a24f6339ad6c775… Patch
- github.com/angular/angular/commit/948a8d6831e8920b54663ec79421d… Patch
- github.com/angular/angular/commit/a64e2883e9dc4abdac70209129be3… Patch
- github.com/angular/angular/commit/a6c7fc5c13e6e494a4c9bd8e773b8… Patch
- github.com/angular/angular/pull/68571 Issue Tracking
Metrics
- CVSS 3.1
-
6.1
MEDIUM
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 4.0
-
8.8
HIGH
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/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 - EPSS — exploit probability
- 0% percentile: 7 · as of 13 November 2026
- CWE
- CWE-345
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.