9router: Unauthenticated `/v1` proxy access via `Host`-header spoofing → open AI relay + SSRF

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

CVE-2026-55641 · Microsoft / collected KEV context

EUVD-2026-42930

GHSA-86m2-fcxq-5q7c

cve-program · CVE-2026-55641

• https://github.com/decolua/9router/security/advisories/GHSA-86m2-fcxq-5q7c
• https://github.com/decolua/9router/commit/b282f0554972ea35281520738759d76abcd0b0b3
• https://github.com/decolua/9router/releases/tag/v0.5.2

euvd · EUVD-2026-42930

• https://github.com/decolua/9router/security/advisories/GHSA-86m2-fcxq-5q7c
• https://github.com/decolua/9router/commit/b282f0554972ea35281520738759d76abcd0b0b3
• https://github.com/decolua/9router/releases/tag/v0.5.2

nvd · CVE-2026-55641

• https://github.com/decolua/9router/commit/b282f0554972ea35281520738759d76abcd0b0b3
• https://github.com/decolua/9router/releases/tag/v0.5.2
• https://github.com/decolua/9router/security/advisories/GHSA-86m2-fcxq-5q7c

osv · GHSA-86m2-fcxq-5q7c

• https://github.com/decolua/9router/security/advisories/GHSA-86m2-fcxq-5q7c
• https://nvd.nist.gov/vuln/detail/CVE-2026-55641
• https://github.com/decolua/9router/commit/b282f0554972ea35281520738759d76abcd0b0b3
• https://github.com/decolua/9router
• https://github.com/decolua/9router/releases/tag/v0.5.2

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