CVE-2026-50556Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages.
Updated under an hour ago ()
Does this affect you?
It affects angular. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.16, 20.3.24, and 19.2.25, a Cross-Site Scripting (XSS) vulnerability exists in @angular/platform-server's DOM emulation dependency (domino) when serializing the content of <noscript> elements. When rendering dynamic text content inside a <noscript> element via template bindings (such as {{ value }} or [textContent]), the template engine expects the browser to render the content safely. Under Server-Side Rendering (SSR), domino is configured with scripting enabled, meaning <noscript> is treated as a raw-text element. However, domino's serializer completely omitted <noscript> from the list of raw-text elements requiring closing-tag escaping during DOM serialization. As a result, any occurrence of </noscript> in the bound dynamic text was never escaped under any circumstances. The unescaped closing tag was serialized directly into the output HTML (e.g. <noscript></noscript><script>alert(1)</script></noscript>). When parsed by a browser, it closes the <noscript> block early, allowing the injected <script> block to execute in the user's browser context, causing same-origin Cross-Site Scripting (XSS). This vulnerability is fixed in 22.0.0-rc.2, 21.2.16, 20.3.24, and 19.2.25.
- CVSS
- 6.1 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
angular angular angular:angular | through 18.2.14; from 19.0.0 before 19.2.25; from 20.0.0 before 20.3.24; from 21.0.0 before 21.2.16; 22.0.0; 22.0.0; 22.0.0; 22.0.0; and 11 more ranges | NVD |
References
- https://github.com/angular/angular/issues/68903issue-tracking
- https://github.com/angular/angular/security/advisories/GHSA-gxx4-3xcv-f8qxthird-party-advisory
- https://github.com/angular/domino/pull/29issue-tracking, patch
- https://access.redhat.com/security/cve/CVE-2026-50556third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2491459third-party-advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50556.jsonthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.