{"answers":{"affected":"32 open source packages ship an affected version, including next. It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-59472 in the wild and no public exploit code.","fix":"Upgrade next to a fixed version for your release line: 15.6.0-canary.61 or 16.1.5.","what":"CVE-2025-59472 is a medium-severity denial of service vulnerability in Vercel Next.js, published on 26 Jan 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-2025-59472 and fix it if it is affected.\n\nWhat it is: CVE-2025-59472 is a medium-severity denial of service vulnerability in Vercel Next.js, published on 26 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-59472 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- next (npm): affected from 15.0.0-canary.0 up to 15.0.0-canary.205; no fix listed\n- next (npm): affected from 15.0.0-canary.0 up to 15.0.0-canary.205; no fix listed\n- next (npm): affected from 15.0.1-canary.0 up to 15.0.1-canary.3; no fix listed\n- next (npm): affected from 15.0.1-canary.0 up to 15.0.1-canary.3; no fix listed\n- next (npm): affected from 15.0.2-canary.0 up to 15.0.2-canary.11; no fix listed\n- next (npm): affected from 15.0.2-canary.0 up to 15.0.2-canary.11; no fix listed\n- next (npm): affected from 15.0.3-canary.0 up to 15.0.3-canary.9; no fix listed\n- next (npm): affected from 15.0.3-canary.0 up to 15.0.3-canary.9; no fix listed\n- next (npm): affected from 15.0.4-canary.0 up to 15.0.4-canary.52; no fix listed\n- next (npm): affected from 15.0.4-canary.0 up to 15.0.4-canary.52; no fix listed\n- next (npm): affected from 15.1.1-canary.0 up to 15.1.1-canary.27; no fix listed\n- next (npm): affected from 15.1.1-canary.0 up to 15.1.1-canary.27; no fix listed\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-2025-59472/ (Markdown: https://insights.sbomify.com/CVE-2025-59472/index.md)","id":"CVE-2025-59472","markdown":"https://insights.sbomify.com/CVE-2025-59472/index.md","name":"CVE-2025-59472","record":{"aliases":["CLSA-2026-1792195720","CLSA-2026-1792196709","CLSA-2026-1792206280","CLSA-2026-1792272215","CLSA-2026-1792292989","CLSA-2026-1792304703","CLSA-2026-1792326285","CLSA-2026-1792338225","CLSA-2026-1792358578","CLSA-2026-1792363970","GHSA-5f7q-jpqc-wp7h"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Next.js framework","requires_auth":"none","summary":"Attackers can crash Next.js servers via memory exhaustion in PPR minimal mode using unbounded buffering or zipbomb payloads.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"next.js","vendor":"vercel"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"A denial of service vulnerability exists in Next.js versions with Partial Prerendering (PPR) enabled when running in minimal mode. The PPR resume endpoint accepts unauthenticated POST requests with the `Next-Resume: 1` header and processes attacker-controlled postponed state data. Two closely related vulnerabilities allow an attacker to crash the server process through memory exhaustion:\n\n1. **Unbounded request body buffering**: The server buffers the entire POST request body into memory using `Buffer.concat()` without enforcing any size limit, allowing arbitrarily large payloads to exhaust available memory.\n\n2. **Unbounded decompression (zipbomb)**: The resume data cache is decompressed using `inflateSync()` without limiting the decompressed output size. A small compressed payload can expand to hundreds of megabytes or gigabytes, causing memory exhaustion.\n\nBoth attack vectors result in a fatal V8 out-of-memory error (`FATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory`) causing the Node.js process to terminate. The zipbomb variant is particularly dangerous as it can bypass reverse proxy request size limits while still causing large memory allocation on the server.\n\nTo be affected you must have an application running with `experimental.ppr: true` or `cacheComponents: true` configured along with the NEXT_PRIVATE_MINIMAL_MODE=1 environment variable.\n\nStrongly consider upgrading to 15.6.0-canary.61 or 16.1.5 to reduce risk and prevent availability issues in Next applications.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Next.js has Unbounded Memory Consumption via PPR Resume Endpoint","id":"CVE-2025-59472","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"vercel:next.js","products":["vercel:next.js"],"type":"denial_of_service","year":"2025"},"n_packages":32,"n_references":1,"next":{"headline":"SQL injection in ExpressionEngine","id":"CVE-2025-59473"},"packages":[{"ecosystem":"npm","fixed":[],"introduced":["15.0.0-canary.0"],"last_affected":["15.0.0-canary.205"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.0.0-canary.0"],"last_affected":["15.0.0-canary.205"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.0.1-canary.0"],"last_affected":["15.0.1-canary.3"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.0.1-canary.0"],"last_affected":["15.0.1-canary.3"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.0.2-canary.0"],"last_affected":["15.0.2-canary.11"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.0.2-canary.0"],"last_affected":["15.0.2-canary.11"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.0.3-canary.0"],"last_affected":["15.0.3-canary.9"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.0.3-canary.0"],"last_affected":["15.0.3-canary.9"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.0.4-canary.0"],"last_affected":["15.0.4-canary.52"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.0.4-canary.0"],"last_affected":["15.0.4-canary.52"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.1.1-canary.0"],"last_affected":["15.1.1-canary.27"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.1.1-canary.0"],"last_affected":["15.1.1-canary.27"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.2.0-canary.0"],"last_affected":["15.2.0-canary.77"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.2.0-canary.0"],"last_affected":["15.2.0-canary.77"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.2.1-canary.0"],"last_affected":["15.2.1-canary.6"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.2.1-canary.0"],"last_affected":["15.2.1-canary.6"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.2.2-canary.0"],"last_affected":["15.2.2-canary.7"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.2.2-canary.0"],"last_affected":["15.2.2-canary.7"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.3.0-canary.0"],"last_affected":["15.3.0-canary.46"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.3.0-canary.0"],"last_affected":["15.3.0-canary.46"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.3.1-canary.0"],"last_affected":["15.3.1-canary.15"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.3.1-canary.0"],"last_affected":["15.3.1-canary.15"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.4.0-canary.0"],"last_affected":["15.4.0-canary.130"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.4.0-canary.0"],"last_affected":["15.4.0-canary.130"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.4.2-canary.0"],"last_affected":["15.4.2-canary.56"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.4.2-canary.0"],"last_affected":["15.4.2-canary.56"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.5.1-canary.0"],"last_affected":["15.5.1-canary.39"],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":[],"introduced":["15.5.1-canary.0"],"last_affected":["15.5.1-canary.39"],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":["15.6.0-canary.61"],"introduced":["15.6.0-canary.0"],"last_affected":[],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":["15.6.0-canary.61"],"introduced":["15.6.0-canary.0"],"last_affected":[],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":["16.1.5"],"introduced":["16.0.0-beta.0"],"last_affected":[],"package":"next","purl":null,"source":"GHSA-5f7q-jpqc-wp7h"},{"ecosystem":"npm","fixed":["16.1.5"],"introduced":["16.0.0-beta.0"],"last_affected":[],"package":"next","purl":"pkg:npm/next","source":"GHSA-5f7q-jpqc-wp7h"}],"prev":{"headline":"Next.js self-hosted applications vulnerable to DoS via Image Optimizer remotePatterns configuration","id":"CVE-2025-59471"},"products":["next"],"published":"2026-01-26","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":8.6,"headline":"Next.js: Server-side request forgery in applications using WebSocket upgrades","id":"CVE-2026-44578","kev_date_added":null,"published":"2026-05-13"},{"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)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-01-27","vendors":["vercel"]},"summary":"Attackers can crash Next.js servers via memory exhaustion in PPR minimal mode using unbounded buffering or zipbomb payloads.","url":"https://insights.sbomify.com/CVE-2025-59472/"}