CVE-2026-118660Published
Happy DOM: SSRF via iframe and link stylesheet when parsing untrusted HTML
Explicit identifiers and source references
These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.
CVE-2026-118660 · Microsoft / collected KEV context
cve-program · CVE-2026-118660
- https://github.com/capricorn86/happy-dom/security/advisories/GHSA-c8p4-j97h-3vg8
- https://github.com/capricorn86/happy-dom/pull/2502
- https://github.com/capricorn86/happy-dom/commit/0a99c7525a1d0043e3182843ae33466ab7b19e74
- https://github.com/capricorn86/happy-dom/releases/tag/v21.0.0
euvd · EUVD-2026-112467
- https://github.com/capricorn86/happy-dom/security/advisories/GHSA-c8p4-j97h-3vg8
- https://github.com/capricorn86/happy-dom/pull/2502
- https://github.com/capricorn86/happy-dom/commit/0a99c7525a1d0043e3182843ae33466ab7b19e74
- https://github.com/capricorn86/happy-dom/releases/tag/v21.0.0
nvd · CVE-2026-118660
- https://github.com/capricorn86/happy-dom/commit/0a99c7525a1d0043e3182843ae33466ab7b19e74
- https://github.com/capricorn86/happy-dom/pull/2502
- https://github.com/capricorn86/happy-dom/releases/tag/v21.0.0
- https://github.com/capricorn86/happy-dom/security/advisories/GHSA-c8p4-j97h-3vg8
osv · GHSA-c8p4-j97h-3vg8
- https://github.com/capricorn86/happy-dom/security/advisories/GHSA-c8p4-j97h-3vg8
- https://github.com/capricorn86/happy-dom/pull/2502
- https://github.com/capricorn86/happy-dom/commit/0a99c7525a1d0043e3182843ae33466ab7b19e74
- https://github.com/capricorn86/happy-dom
- https://github.com/capricorn86/happy-dom/releases/tag/v21.0.0
Related operational evidence
Explicit CVE identifiers- Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. Prior to 21.0.0, Happy DOM loads iframe src URLs and link rel="stylesheet" href URLs by default while parsing untrusted HTML on the server becau… · Advisory content revised · 30 Oct 2026
- Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. Prior to 21.0.0, Happy DOM loads iframe src URLs and link rel="stylesheet" href URLs by default while parsing untrusted HTML on the server becau… · Advisory content revised · 30 Oct 2026
- Happy DOM: SSRF via iframe and link stylesheet when parsing untrusted HTML · Newly collected advisory · 28 Oct 2026
- Happy DOM: SSRF via iframe and link stylesheet when parsing untrusted HTML · Newly collected advisory · 28 Oct 2026