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    CVE-2025-29927

    Next.js is a React framework for building full-stack web applications. Starting in version 1.11.4 and prior to versions 12.3.5, 13.5.9, 14.2.25, and 15.2.3, it is possible to bypass authorization checks within a Next.js application, if the authorization check occurs in middleware. If patching to a safe version is infeasible, it is recommend that you prevent external user requests which contain the x-middleware-subrequest header from reaching your Next.js application. This vulnerability is fixed in 12.3.5, 13.5.9, 14.2.25, and 15.2.3.

    Published:Mar 21, 2025
    Last Modified:Sep 10, 2025
    EPS:Mar 21, 2025
    EPSS Score:0.92084
    CVSS Score:9.1

    Affected Products

    Vendor
    Vercel
    Product
    Next.js

    Exploits

    https://www.exploit-db.com/exploits/52124https://github.com/0xb1lal/CVE-2025-29927https://github.com/0xcucumbersalad/cve-2025-29927https://github.com/0xh3g4z1/CVE-2025-29927-Next.js-Middleware-Authorization-Bypasshttps://github.com/0xnxt1me/CVE-2025-29927https://github.com/0xPb1/Next.js-CVE-2025-29927https://github.com/0xPThree/next.js_cve-2025-29927https://github.com/0xWhoknows/CVE-2025-29927https://github.com/6mile/nextjs-CVE-2025-29927https://github.com/aayush256-sys/next-js-auth-bypasshttps://github.com/Ademking/CVE-2025-29927https://github.com/adjscent/vulnerable-nextjs-14-CVE-2025-29927https://github.com/alastair66/CVE-2025-29927https://github.com/aleongx/CVE-2025-29927https://github.com/aleongx/CVE-2025-29927_Scannerhttps://github.com/alihussainzada/CVE-2025-29927-PoChttps://github.com/all3njk/NextJS_CVE-2025-29927https://github.com/amalpvatayam67/day10-nextjs-middleware-labhttps://github.com/amitlttwo/Next.JS-CVE-2025-29927https://github.com/AnonKryptiQuz/NextSploithttps://github.com/arvion-agent/next-CVE-2025-29927https://github.com/Ashwesker/Blackash-CVE-2025-29927https://github.com/AventurineJ/CVE-2025-29927-Researchhttps://github.com/ayato-shitomi/WebLab_CVE-2025-29927https://github.com/aydinnyunus/CVE-2025-29927https://github.com/azu/nextjs-cve-2025-29927-pochttps://github.com/B1ack4sh/Blackash-CVE-2025-29927https://github.com/b4sh0xf/PoC-CVE-2025-29927https://github.com/Balajih4kr/cve-2025-29927https://github.com/berraesen/nextjs-middleware-auth-bypass-labhttps://github.com/BilalGns/CVE-2025-29927https://github.com/bk-security/auth-header-trust-ruleshttps://github.com/Bongni/CVE-2025-29927https://github.com/BugHawak/CVE-2025-29927https://github.com/c0dejump/CVE-2025-29927-checkhttps://github.com/DanielHallbro/CVE-2025-29927-Nextjs-Bypass-PoChttps://github.com/dante01yoon/CVE-2025-29927https://github.com/darklotuskdb/nextjs-CVE-2025-29927-hunterhttps://github.com/dbwlsdnr95/CVE-2025-29927https://github.com/dedibagus/cve-2025-29927-pochttps://github.com/diogolourencodev/middleforcehttps://github.com/EarthAngel666/x-middleware-exploithttps://github.com/elshaheedy/CVE-2025-29927-Sigma-Rulehttps://github.com/emadshanab/CVE-2025-29927https://github.com/enochgitgamefied/NextJS-CVE-2025-29927https://github.com/enochgitgamefied/NextJS-CVE-2025-29927-Docker-Labhttps://github.com/EQSTLab/CVE-2025-29927https://github.com/ethanol1310/POC-CVE-2025-29927-https://github.com/Ev3rPalestine/0xMiddlewarehttps://github.com/Eve-SatOrU/POC-CVE-2025-29927https://github.com/fahimalshihab/NextBypasshttps://github.com/ferpalma21/Automated-Next.js-Security-Scanner-for-CVE-2025-29927https://github.com/Fomovet/cve-2025-29927https://github.com/fourcube/nextjs-middleware-bypass-demohttps://github.com/furmak331/CVE-2025-29927https://github.com/gitgudKrish/cve-2025-29927-nextjshttps://github.com/Gokul-Krishnan-V-R/cve-2025-29927https://github.com/gotr00t0day/CVE-2025-29927https://github.com/Grand-Moomin/Vuln-Next.js-CVE-2025-29927https://github.com/hed1ad/CVE-2025-29927https://github.com/Heimd411/CVE-2025-29927-PoChttps://github.com/Hirainsingadia/CVE-2025-29927https://github.com/HoumanPashaei/CVE-2025-29927https://github.com/hujiaozhuzhu/CVE-2025-29927__Next.jshttps://github.com/iSee857/CVE-2025-29927https://github.com/iteride/CVE-2025-29927https://github.com/jeymo092/cve-2025-29927https://github.com/jmbowes/NextSecureScanhttps://github.com/JOOJIII/CVE-2025-29927https://github.com/Kamal-418/Vulnerable-Lab-NextJS-CVE-2025-29927https://github.com/Kamal-Hegazi/CVE-2025-29927-Next.js-Middleware-Authorization-Bypasshttps://github.com/KaztoRay/CVE-2025-29927-Researchhttps://github.com/kazuya256/next-js-auth-bypasshttps://github.com/kh4sh3i/CVE-2025-29927https://github.com/Knotsecurity/CVE-2025-29927-NextJs-Middleware-Simulationhttps://github.com/kOaDT/poc-cve-2025-29927https://github.com/kuyrathdaro/cve-2025-29927https://github.com/kuzushiki/CVE-2025-29927-testhttps://github.com/l1uk/nextjs-middleware-exploithttps://github.com/lem0n817/CVE-2025-29927https://github.com/liamromanis101/CVE-2025-29927-NextJShttps://github.com/lirantal/vulnerable-nextjs-14-CVE-2025-29927https://github.com/lstudlo/nextjs-cve-demohttps://github.com/lucaschanzx/CVE-2025-29927-PoChttps://github.com/luq0x/0xMiddlewarehttps://github.com/m2hcz/PoC-for-Next.js-Middlewarehttps://github.com/maronnjapan/claude-create-CVE-2025-29927https://github.com/metasploit403/cve-2025-29927-labhttps://github.com/mhamzakhattak/CVE-2025-29927https://github.com/mickhacking/Thank-u-Nexthttps://github.com/MKIRAHMET/CVE-2025-29927-PoChttps://github.com/moften/CVE-2025-29927https://github.com/moften/CVE-2025-29927_Next.js_Auth_Bypasshttps://github.com/MuhammadWaseem29/CVE-2025-29927-POChttps://github.com/Naveen-005/Next.Js-middleware-bypass-vulnerability-CVE-2025-29927https://github.com/Nayekah/Next.js-Proof-of-Concepthttps://github.com/Nekicj/CVE-2025-29927-exploithttps://github.com/newweshi/CVE-2025-29927https://github.com/nicknisi/next-attackhttps://github.com/nocomp/CVE-2025-29927-scannerhttps://github.com/NS-Projects-Unina/CTF_CVE_DSP_1https://github.com/olimpiofreitas/CVE-2025-29927-scannerhttps://github.com/Oyst3r1ng/CVE-2025-29927https://github.com/phoscoder/ghost-routehttps://github.com/pickovven/vulnerable-nextjs-14-CVE-2025-29927https://github.com/pixilated730/NextJS-Exploit-https://github.com/pouriam23/Next.js-Middleware-Bypass-CVE-2025-29927-https://github.com/R3verseIN/Nextjs-middleware-vulnerable-appdemo-CVE-2025-29927https://github.com/radzek15/CVE-2025-29927-Next.js-middlewarehttps://github.com/rgvillanueva28/vulnbox-easy-CVE-2025-29927https://github.com/ricsirigu/CVE-2025-29927https://github.com/Ritinify/CVE-2025-29927-PoChttps://github.com/RoyCampos/CVE-2025-29927https://github.com/rubbxalc/CVE-2025-29927https://github.com/s11s11/CVE-2025-29927https://github.com/sagsooz/CVE-2025-29927https://github.com/sahbaazansari/CVE-2025-29927https://github.com/sangrok-jeon/CVE-2025-29927-Nextjs-Analysishttps://github.com/sdrtba/CVE-2025-29927https://github.com/serhalp/test-cve-2025-29927https://github.com/sermikr0/nextjs-middleware-auth-bypasshttps://github.com/shahin-shadow/nextjs-auth-bypasshttps://github.com/Si-Ni/CVE-2025-29927-Proof-of-Concepthttps://github.com/sn1p3rt3s7/NextJS_CVE-2025-29927https://github.com/strobes-security/nextjs-vulnerable-apphttps://github.com/SugiB3o/vulnerable-nextjs-14-CVE-2025-29927https://github.com/SwapnilDeshpande/cve-2025-29927-labhttps://github.com/t3tra-dev/cve-2025-29927-demohttps://github.com/takumade/ghost-routehttps://github.com/TheresAFewConors/CVE-2025-29927-Testinghttps://github.com/TheWaterbug/alpr-dashboard-patcheshttps://github.com/ticofookfook/poc-nextjs-CVE-2025-29927https://github.com/Toddkk02/CVE-2025-29927https://github.com/UNICORDev/exploit-CVE-2025-29927https://github.com/ValGrace/middleware-auth-bypasshttps://github.com/w2hcorp/CVE-2025-29927-PoChttps://github.com/w3shinew/CVE-2025-29927https://github.com/websecnl/CVE-2025-29927-PoC-Exploithttps://github.com/YEONDG/nextjs-cve-2025-29927https://github.com/yugo-eliatrope/test-cve-2025-29927https://github.com/yuzu-juice/CVE-2025-29927_demohttps://github.com/zs1n/CVE-2025-29927

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High