{"answers":{"affected":"4 open source packages ship an affected version, including next. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44578 exists.","fix":"Upgrade next to a fixed version for your release line: 15.5.16 or 16.2.5.","what":"CVE-2026-44578 is a high-severity server-side request forgery vulnerability in Vercel Next.js, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-44578 and fix it if it is affected.\n\nWhat it is: CVE-2026-44578 is a high-severity server-side request forgery vulnerability in Vercel Next.js, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44578 exists.\n\nAffected packages and fixed versions:\n- next (npm): affected from 13.4.13; fixed in 15.5.16\n- next (npm): affected from 13.4.13; fixed in 15.5.16\n- next (npm): affected from 16.0.0; fixed in 16.2.5\n- next (npm): affected from 16.0.0; fixed in 16.2.5\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-44578/ (Markdown: https://insights.sbomify.com/CVE-2026-44578/index.md)","id":"CVE-2026-44578","markdown":"https://insights.sbomify.com/CVE-2026-44578/index.md","name":"CVE-2026-44578","record":{"aliases":["CLEANSTART-2026-WQ22617","CLEANSTART-2026-WR08487","GHSA-c4j6-fc7j-m34r","MINI-32r3-hxmf-g53g","MINI-3cq8-qx74-cfx9","MINI-p88j-rx68-3gp2","MINI-q45p-fmhw-8pvg","ROOT-APP-NPM-CVE-2026-44578"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Next.js framework","requires_auth":"none","summary":"Attackers can exploit WebSocket upgrades in self-hosted Next.js apps to perform server-side request forgery, exposing internal services or cloud metadata.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"next.js","vendor":"vercel"}],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"Next.js is a React framework for building full-stack web applications. From 13.4.13 to before 15.5.16 and 16.2.5, self-hosted applications using the built-in Node.js server can be vulnerable to server-side request forgery through crafted WebSocket upgrade requests. An attacker can cause the server to proxy requests to arbitrary internal or external destinations, which may expose internal services or cloud metadata endpoints. Vercel-hosted deployments are not affected. This vulnerability is fixed in 15.5.16 and 16.2.5.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":"2026-05-13","github_poc":8,"max_poc_stars":77,"metasploit":0,"nuclei":1,"refs":[{"date":"2026-05-15T05:02:38Z","kind":"github_poc","ref":"https://github.com/ynsmroztas/nextssrf","stars":77,"title":"NextSSRF — CVE-2026-44578 Scanner \u0026 Exploit          ║ ║   Next.js WebSocket Upgrade Handler SSRF"},{"date":"2026-05-16T10:15:20Z","kind":"github_poc","ref":"https://github.com/dinosn/CVE-2026-44578","stars":9,"title":"CVE-2026-44578: Next.js WebSocket Upgrade SSRF — pre-auth credential theft via localhost:80. Lab + exploit + audit."},{"date":"2026-05-15T17:14:35Z","kind":"github_poc","ref":"https://github.com/love07oj/nextjs-cve-2026-44578","stars":8,"title":"Nuclei templates for detecting CVE-2026-44578 (Next.js WebSocket Upgrade SSRF) with multi-cloud metadata validation, Next.js fingerprinting, and real-world scanning workflows. Includes references to the original NextSSRF research and exploit tooling."},{"date":"2026-05-16T14:41:12Z","kind":"github_poc","ref":"https://github.com/0xredash/CVE-2026-44578","stars":2,"title":"CVE-2026-44578"},{"date":"2026-08-18T14:37:24Z","kind":"github_poc","ref":"https://github.com/lxxexxbxx/CVE-2026-44578","stars":1,"title":"CVE-2026-44578 PoC"},{"date":"2026-05-13T05:49:11Z","kind":"github_poc","ref":"https://github.com/panchocosil/verify-ghsa-c4j6-fc7j-m34r","stars":0,"title":"OOB verifier for GHSA-c4j6-fc7j-m34r / CVE-2026-44578 (Next.js WebSocket-upgrade SSRF)"},{"date":"2026-05-15T09:02:22Z","kind":"github_poc","ref":"https://github.com/tocong282/CVE-2026-44578-PoC","stars":0,"title":null},{"date":"2026-09-06T15:54:41Z","kind":"github_poc","ref":"https://github.com/isaca0315/CVE-2026-44578-next-js-ssrf","stars":0,"title":"este laboratorio puede estar bien o mal esta el pruebas pero debe funcionar preguntale a la IA hahah"}],"tier":"weaponised"},"has_fix":true,"headline":"Next.js: Server-side request forgery in applications using WebSocket upgrades","id":"CVE-2026-44578","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"vercel:next.js","products":["vercel:next.js"],"type":"ssrf","year":"2026"},"n_packages":4,"n_references":1,"next":{"headline":"Next.js: Denial of Service via connection exhaustion in applications using Cache Components","id":"CVE-2026-44579"},"packages":[{"ecosystem":"npm","fixed":["15.5.16"],"introduced":["13.4.13"],"last_affected":[],"package":"next","purl":null,"source":"GHSA-c4j6-fc7j-m34r"},{"ecosystem":"npm","fixed":["15.5.16"],"introduced":["13.4.13"],"last_affected":[],"package":"next","purl":"pkg:npm/next","source":"GHSA-c4j6-fc7j-m34r"},{"ecosystem":"npm","fixed":["16.2.5"],"introduced":["16.0.0"],"last_affected":[],"package":"next","purl":null,"source":"GHSA-c4j6-fc7j-m34r"},{"ecosystem":"npm","fixed":["16.2.5"],"introduced":["16.0.0"],"last_affected":[],"package":"next","purl":"pkg:npm/next","source":"GHSA-c4j6-fc7j-m34r"}],"prev":{"headline":"Next.js: Denial of Service in the Image Optimization API","id":"CVE-2026-44577"},"products":["next.js"],"published":"2026-05-13","related":[{"cvss_score":9.1,"headline":"Authorization Bypass in Next.js Middleware","id":"CVE-2025-29927","kev_date_added":null,"published":"2025-03-21"},{"cvss_score":8.3,"headline":"Next.js: Server-Side Request Forgery in Image Optimization","id":"CVE-2026-94483","kev_date_added":null,"published":"2026-10-02"},{"cvss_score":8.3,"headline":"Next.js: Middleware / Proxy bypass in App Router applications using Turbopack and single locale","id":"CVE-2026-64642","kev_date_added":null,"published":"2026-07-27"},{"cvss_score":8.3,"headline":"Next.js: Server-Side Request Forgery in rewrites via attacker-controlled destination hostname","id":"CVE-2026-64645","kev_date_added":null,"published":"2026-07-27"},{"cvss_score":8.3,"headline":"Next.js: Server-Side Request Forgery in Server Actions on Custom Servers","id":"CVE-2026-64649","kev_date_added":null,"published":"2026-07-27"},{"cvss_score":8.2,"headline":"Next.js: Denial of Service in App Router using Server Actions","id":"CVE-2026-64641","kev_date_added":null,"published":"2026-07-27"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-13","vendors":["vercel"]},"summary":"Attackers can exploit WebSocket upgrades in self-hosted Next.js apps to perform server-side request forgery, exposing internal services or cloud metadata.","url":"https://insights.sbomify.com/CVE-2026-44578/"}