{"uuid": "d20da2ab-a361-4073-a534-25bedfa370cb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2024-51479", "type": "seen", "source": "https://t.me/brutsecurity/1732", "content": "\ud83c\udf00 This is wild!\n\nYou\u2019ve probably seen the buzz around the Next.js middleware auth bypass (CVE-2025-29927) \u2014 but there\u2019s another less-known yet similar vulnerability: CVE-2024-51479.\n\nThis flaw allows attackers to bypass authentication by abusing the __nextLocale query parameter in the URL, tricking the middleware into granting access to protected routes.\n\nProof of Concept (PoC):\n\ncurl https://target.com/?__nextLocale=/admin\n\nThis vulnerability was fixed in Next.js v14.2.15, and Vercel-hosted apps have already been patched automatically.\n\nI found a very cool article explaining everything in detail:\n\nhttps://gmo-cybersecurity.com/blog/another-nextjs-middleware-bypass-en", "creation_timestamp": "2026-07-09T03:00:08.726356Z"}