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TI-2026-60080 Aliases CVE-2026-88060GHSA-v3p8-whq6-r5jg

Angular: SSR XSS via Unescaped <template> Content Across DocumentFragment Boundaries in Fallback Raw-Content Elements

Priority HIGH 72CWE-116Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 2 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-79.

Summary

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.30, 21.2.22, and 22.1.4, Angular server-side rendering (SSR) in @angular/platform-server serializes untrusted input inside template content nested in fallback raw-content elements such as noscript, iframe, noembed, and noframes. The Domino serializer's fallbackRawContentTags traversal stopped at the DocumentFragment used by template.content, so matching closing tags in xmp, style, script, comments, or text nodes were not escaped. Standard interpolation with comments or text nodes is reachable without relaxed schemas; literal xmp or style requires CUSTOM_ELEMENTS_SCHEMA or NO_ERRORS_SCHEMA, while Renderer2 imperative DOM construction is unconditionally affected. When HTML5 RAWTEXT browser parsing encounters the unescaped closing tag, it exits the fallback container and interprets trailing markup as active DOM elements, enabling arbitrary JavaScript execution. This issue is fixed in versions 20.3.30, 21.2.22, and 22.1.4.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00362 30th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial angular (angular): 20.3.30, 21.2.22, 22.1.4@angular/platform-server (npm): 22.1.4, 21.2.22, 20.3.30Red Hat: 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
angularangularup to 19.2.25; 20.0.0 to before 20.3.30; 21.0.0 to before 21.2.22; 22.0.0 to before 22.1.420.3.30, 21.2.22, 22.1.4Patch availableCNA
—@angular/platform-server (npm)22.0.0 to before 22.1.422.1.4Patch availableGHSA-v3p8-whq6-r5jg
—@angular/platform-server (npm)21.0.0 to before 21.2.2221.2.22Patch availableGHSA-v3p8-whq6-r5jg
—@angular/platform-server (npm)20.0.0 to before 20.3.3020.3.30Patch availableGHSA-v3p8-whq6-r5jg
—@angular/platform-server (npm)up to 19.2.25—No fix listedGHSA-v3p8-whq6-r5jg
  • angular Vendorangular Affected up to 19.2.25; 20.0.0 to before 20.3.30; 21.0.0 to before 21.2.22; 22.0.0 to before 22.1.4 Fixed in 20.3.30, 21.2.22, 22.1.4 Patch available CNA
  • @angular/platform-server (npm) Vendor— Affected 22.0.0 to before 22.1.4 Fixed in 22.1.4 Patch available GHSA-v3p8-whq6-r5jg
  • @angular/platform-server (npm) Vendor— Affected 21.0.0 to before 21.2.22 Fixed in 21.2.22 Patch available GHSA-v3p8-whq6-r5jg
  • @angular/platform-server (npm) Vendor— Affected 20.0.0 to before 20.3.30 Fixed in 20.3.30 Patch available GHSA-v3p8-whq6-r5jg
  • @angular/platform-server (npm) Vendor— Affected up to 19.2.25 Fixed in — No fix listed GHSA-v3p8-whq6-r5jg

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*19.0.0 – 19.2.25; 20.0.0 to before 20.3.30; 21.0.0 to before 21.2.22; 22.0.0 to before 22.1.4Vulnerableangular
  • cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* Versions 19.0.0 – 19.2.25; 20.0.0 to before 20.3.30; 21.0.0 to before 21.2.22; 22.0.0 to before 22.1.4 Vulnerable ·angular

Remediation

  • Fix · CNA angular (angular) Fixed in 20.3.30, 21.2.22, 22.1.4
  • Fix · GHSA-v3p8-whq6-r5jg @angular/platform-server (npm) Fixed in 22.1.4 Advisory →
  • Fix · GHSA-v3p8-whq6-r5jg @angular/platform-server (npm) Fixed in 21.2.22 Advisory →
  • Fix · GHSA-v3p8-whq6-r5jg @angular/platform-server (npm) Fixed in 20.3.30 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux 9AffectedNo fix yet

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-88060
  2. 2026-10-03 Alias added: GHSA-v3p8-whq6-r5jg
  3. 2026-11-06 Affected versions changed · Red Hat
  4. 2026-11-06 CVSS score added · Red Hat

References

Exploit 1

Patch 4

Other 4

  • TI-2026-60076 Angular: SSRF and Cross-Origin Credential Disclosure via URL Resolution Discrepancy in SSR CVSS 4.0HIGH 8.6
  • TI-2026-60078 Angular: SSR XSS via Unescaped Processing Instruction (<?...?>) Nodes in Fallback Raw-Content Elements CVSS 4.0HIGH 8.6
  • TI-2025-37971 A reflected cross-site scripting (XSS) vulnerability in CKeditor v46.1.0 & Angular… CVSS 3.1MEDIUM 5.4
  • TI-2026-36931 Angular: URL Parser Differential in @angular/platform-server leading to SSRF Allowlist Bypass CVSS 4.0HIGH 8.8
  • TI-2026-34131 Angular: SSRF via Hostname Hijacking in @angular/platform-server CVSS 4.0HIGH 8.8
  • TI-2026-48469 Angular: Cache-Key Ambiguity in HttpTransferCache Leading to Cross-Request Response Reuse and State Poisoning CVSS 4.0HIGH 8.8
See all 28 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences