CVE-2026-88059: Angular.js · Prior to 20.3.28, 21.2.20, and 22.1.1, Angular's @angular/common HttpTransferCache can cache an authenticated response when Server-Side Rendering
Affects angular.jsSource GCVE Database
Not known to be exploited · CVSS 5.8 Medium · fixed in 22.1.1 : update angular.js when convenient.
Data as of 26 Oct 2026, 07:57 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 22.1.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npm@angular/common | Affected
| Fixed in– |
Ubuntu:Pro:16.04:LTSangular.jspkg:deb/ubuntu/angular.js?arch=source&distro=esm-infra/xenialOther threats | Affected
| Fixed in– |
Ubuntu:Pro:18.04:LTSangular.jspkg:deb/ubuntu/angular.js?arch=source&distro=esm-infra/bionicOther threats | Affected
| Fixed in– |
Ubuntu:Pro:20.04:LTSangular.jspkg:deb/ubuntu/angular.js?arch=source&distro=esm-apps/focalOther threats | Affected
| Fixed in– |
Ubuntu:22.04:LTSangular.jspkg:deb/ubuntu/angular.js?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu:24.04:LTSangular.jspkg:deb/ubuntu/angular.js?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu:26.10angular.jspkg:deb/ubuntu/angular.js?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu:26.04:LTSangular.jspkg:deb/ubuntu/angular.js?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
The vulnerability is fixed in Angular versions 22.1.1, 21.2.20, and 20.3.28. Users should upgrade to these or later versions to remediate the issue. No vendor advisory content contradicts this; thus, upgrading is the recommended action.
Description
A vulnerability in Angular's @angular/common HttpTransferCache affects versions prior to 20.3.28, 21.2.20, and 22.1.1. When using Server-Side Rendering with hydration and a hierarchical HttpClient configuration, authenticated response data can be cached prematurely and leaked to unauthorized users. This occurs because child HttpClient instances mark requests as cacheable before authentication headers are applied by parent interceptors. The issue is fixed in versions 22.1.1, 21.2.20, and 20.3.28.
References
- github.com/angular/angular/security/advisories/GHSA-p297-fm68-3q8c (opens in a new tab)
- github.com/angular/angular/issues/69777 (opens in a new tab)
- github.com/angular/angular/pull/69778 (opens in a new tab)
- github.com/angular/angular/commit/c45028e44f5f3c1e0006eaccf86642deca51b2af (opens in a new tab)
- github.com/angular/angular/commit/caf616670fd20d528aa69e0131cc17d60f0cc27d (opens in a new tab)
- github.com/angular/angular/commit/e4c416c20a1cb222ce73d29c035452b257380c56 (opens in a new tab)
- github.com/angular/angular (opens in a new tab)
- github.com/angular/angular/releases/tag/v20.3.28 (opens in a new tab)
- github.com/angular/angular/releases/tag/v21.2.20 (opens in a new tab)
- github.com/angular/angular/releases/tag/v22.1.1 (opens in a new tab)
- ubuntu.com/security/CVE-2026-88059 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-88059 (opens in a new tab)