This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis β
Q1What is this vulnerability? (Essence + Consequences)
π¨ **Essence**: Next.js Middleware Authorization Bypass. If you check auth via URL path in middleware, attackers can skip it by accessing the root directory. π **Consequences**: Unauthorized access to protected pages.β¦
π‘οΈ **CWE**: CWE-285 (Improper Authorization). π **Flaw**: Logic error in Middleware. The check relies on `pathname`. Root directory requests bypass this specific path-based check.β¦
π **Threshold**: LOW. π **Network**: Remote (AV:N). π **Auth**: None required (PR:N). π±οΈ **User**: No interaction needed (UI:N). π― **Complexity**: Low (AC:L). Easy to exploit if the flawed pattern is used.
Q6Is there a public Exp? (PoC/Wild Exploitation)
π **PoC**: Yes. Link: `github.com/doc0null/nextjs-CVE-2025-55182`. π **Wild Exploit**: Possible. The logic flaw is straightforward. π **Note**: PoC repo name has a typo (2025 vs 2024), but it targets this CVE.β¦
π **Self-Check**: Do you use Middleware for auth? π **Pattern**: Do you check `request.nextUrl.pathname`? π **Risk**: If you protect routes but not the root `/`, you are vulnerable.β¦
π§ **Workaround**: If you can't upgrade: 1. Avoid path-only checks in Middleware. 2. Add explicit root path handling. 3. Implement session-based auth instead of URL-based.β¦