CVE-2026-42261

PromptHub prior to v0.5.4 exposes an authenticated SSRF via POST /api/skills/fetch-remote in apps/web/src/routes/skills.ts. The endpoint fetches a user-supplied URL server-side and reflects the response (up to 5 MB) back to the caller. The isPrivateIPv6 check in apps/web/src/utils/remote-http.ts ...