Happy DOM's fetch credentials include uses page-origin cookies instead of target-origin cookies

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-34226 · Microsoft / collected KEV context

EUVD-2026-16893

GHSA-w4gp-fjgq-3q4g

cve-program · CVE-2026-34226

• https://github.com/capricorn86/happy-dom/security/advisories/GHSA-w4gp-fjgq-3q4g
• https://github.com/capricorn86/happy-dom/pull/2117
• https://github.com/capricorn86/happy-dom/commit/68324c21d7b98f53f7bb5a7b3e185bda7106e751
• https://github.com/capricorn86/happy-dom/blob/f8d8cad41e9722fab9eefb9dfb3cca696462e908/packages/happy-dom/src/fetch/utilities/FetchRequestHeaderUtility.ts
• https://github.com/capricorn86/happy-dom/releases/tag/v20.8.9

euvd · EUVD-2026-16893

• https://github.com/capricorn86/happy-dom/security/advisories/GHSA-w4gp-fjgq-3q4g
• https://github.com/capricorn86/happy-dom/pull/2117
• https://github.com/capricorn86/happy-dom/commit/68324c21d7b98f53f7bb5a7b3e185bda7106e751
• https://github.com/capricorn86/happy-dom/blob/f8d8cad41e9722fab9eefb9dfb3cca696462e908/packages/happy-dom/src/fetch/utilities/FetchRequestHeaderUtility.ts
• https://github.com/capricorn86/happy-dom/releases/tag/v20.8.9

nvd · CVE-2026-34226

• https://github.com/capricorn86/happy-dom/blob/f8d8cad41e9722fab9eefb9dfb3cca696462e908/packages/happy-dom/src/fetch/utilities/FetchRequestHeaderUtility.ts
• https://github.com/capricorn86/happy-dom/commit/68324c21d7b98f53f7bb5a7b3e185bda7106e751
• https://github.com/capricorn86/happy-dom/pull/2117
• https://github.com/capricorn86/happy-dom/releases/tag/v20.8.9
• https://github.com/capricorn86/happy-dom/security/advisories/GHSA-w4gp-fjgq-3q4g
• https://access.redhat.com/security/cve/CVE-2026-34226
• https://bugzilla.redhat.com/show_bug.cgi?id=2452519
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34226.json

osv · GHSA-w4gp-fjgq-3q4g

• https://github.com/capricorn86/happy-dom/security/advisories/GHSA-w4gp-fjgq-3q4g
• https://nvd.nist.gov/vuln/detail/CVE-2026-34226
• https://github.com/capricorn86/happy-dom/pull/2117
• https://github.com/capricorn86/happy-dom/commit/68324c21d7b98f53f7bb5a7b3e185bda7106e751
• https://github.com/capricorn86/happy-dom
• https://github.com/capricorn86/happy-dom/blob/f8d8cad41e9722fab9eefb9dfb3cca696462e908/packages/happy-dom/src/fetch/utilities/FetchRequestHeaderUtility.ts
• https://github.com/capricorn86/happy-dom/releases/tag/v20.8.9

No related operational record is retained in the current change model.