{"answers":{"affected":"18 open source packages ship an affected version, including react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack. It affects 2 products.","exploited":"Yes. Attackers have exploited CVE-2025-55182 in the wild since at least 5 Dec 2025, including in ransomware campaigns.","fix":"Upgrade react-server-dom-parcel to a fixed version for your release line: 19.0.1, 19.1.2 or 19.2.1. US federal agencies must fix it by 12 Dec 2025.","what":"CVE-2025-55182 is a critical unsafe deserialization vulnerability in Vercel Next.js, published on 3 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-55182 and fix it if it is affected.\n\nWhat it is: CVE-2025-55182 is a critical unsafe deserialization vulnerability in Vercel Next.js, published on 3 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2025-55182 in the wild since at least 5 Dec 2025, including in ransomware campaigns.\n\nAffected packages and fixed versions:\n- react-server-dom-parcel (npm): affected from 19.0.0; fixed in 19.0.1\n- react-server-dom-parcel (npm): affected from 19.0.0; fixed in 19.0.1\n- react-server-dom-parcel (npm): affected from 19.1.0; fixed in 19.1.2\n- react-server-dom-parcel (npm): affected from 19.1.0; fixed in 19.1.2\n- react-server-dom-parcel (npm): affected from 19.2.0; fixed in 19.2.1\n- react-server-dom-parcel (npm): affected from 19.2.0; fixed in 19.2.1\n- react-server-dom-turbopack (npm): affected from 19.0.0; fixed in 19.0.1\n- react-server-dom-turbopack (npm): affected from 19.0.0; fixed in 19.0.1\n- react-server-dom-turbopack (npm): affected from 19.1.0; fixed in 19.1.2\n- react-server-dom-turbopack (npm): affected from 19.1.0; fixed in 19.1.2\n- react-server-dom-turbopack (npm): affected from 19.2.0; fixed in 19.2.1\n- react-server-dom-turbopack (npm): affected from 19.2.0; fixed in 19.2.1\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-2025-55182/ (Markdown: https://insights.sbomify.com/CVE-2025-55182/index.md)","id":"CVE-2025-55182","markdown":"https://insights.sbomify.com/CVE-2025-55182/index.md","name":"CVE-2025-55182","record":{"aliases":["CLSA-2026-1792195716","CLSA-2026-1792195717","CLSA-2026-1792195718","CLSA-2026-1792195719","CLSA-2026-1792195755","CLSA-2026-1792196702","CLSA-2026-1792196704","CLSA-2026-1792196706","CLSA-2026-1792196707","CLSA-2026-1792196895","CLSA-2026-1792206276","CLSA-2026-1792206277","CLSA-2026-1792206278","CLSA-2026-1792206279","CLSA-2026-1792206328","CLSA-2026-1792256955","CLSA-2026-1792256956","CLSA-2026-1792256957","CLSA-2026-1792256958","CLSA-2026-1792256967","CLSA-2026-1792272210","CLSA-2026-1792272211","CLSA-2026-1792272212","CLSA-2026-1792272214","CLSA-2026-1792272250","CLSA-2026-1792292985","CLSA-2026-1792292986","CLSA-2026-1792292987","CLSA-2026-1792292988","CLSA-2026-1792293023","CLSA-2026-1792304696","CLSA-2026-1792304698","CLSA-2026-1792304699","CLSA-2026-1792304701","CLSA-2026-1792304746","CLSA-2026-1792326281","CLSA-2026-1792326282","CLSA-2026-1792326283","CLSA-2026-1792326284","CLSA-2026-1792326311","CLSA-2026-1792338221","CLSA-2026-1792338222","CLSA-2026-1792338223","CLSA-2026-1792338224","CLSA-2026-1792338241","CLSA-2026-1792346458","CLSA-2026-1792346460","CLSA-2026-1792346461","CLSA-2026-1792346462","CLSA-2026-1792346472","CLSA-2026-1792346489","CLSA-2026-1792358574","CLSA-2026-1792358575","CLSA-2026-1792358576","CLSA-2026-1792358577","CLSA-2026-1792358601","CLSA-2026-1792363964","CLSA-2026-1792363966","CLSA-2026-1792363967","CLSA-2026-1792363969","CLSA-2026-1792364009","CLSA-2026-1792367377","CLSA-2026-1792367379","CLSA-2026-1792367380","CLSA-2026-1792367381","CLSA-2026-1792367393","CLSA-2026-1792367405","CVE-2025-66478","GHSA-fv66-9v8q-g76r"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"React Server Components","requires_auth":"none","summary":"Attackers can execute arbitrary code remotely by sending malicious payloads to Server Function endpoints in vulnerable React Server Components packages.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Meta","cpe":[{"product":"react","vendor":"facebook"},{"product":"next.js","vendor":"vercel"}],"cvss":{"score":10,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.","ecosystems":["npm"],"exploits":{"exploitdb":1,"first_seen":"2022-06-17","github_poc":461,"max_poc_stars":2455,"metasploit":1,"nuclei":1,"refs":[{"date":"2025-12-04T06:55:04Z","kind":"github_poc","ref":"https://github.com/assetnote/react2shell-scanner","stars":2455,"title":"High Fidelity Detection Mechanism for RSC/Next.js RCE (CVE-2025-55182 \u0026 CVE-2025-66478)"},{"date":"2025-12-04T11:49:55Z","kind":"github_poc","ref":"https://github.com/msanft/CVE-2025-55182","stars":1431,"title":"Explanation and full RCE PoC for CVE-2025-55182"},{"date":"2025-12-05T08:00:07Z","kind":"github_poc","ref":"https://github.com/lachlan2k/React2Shell-CVE-2025-55182-original-poc","stars":1064,"title":"Original Proof-of-Concepts for React2Shell CVE-2025-55182"},{"date":"2025-12-03T21:16:22Z","kind":"github_poc","ref":"https://github.com/ejpir/CVE-2025-55182-research","stars":790,"title":"CVE-2025-55182 POC"},{"date":"2025-12-05T05:53:25Z","kind":"github_poc","ref":"https://github.com/mrknow001/RSC_Detector","stars":585,"title":"Supports RSC fingerprinting and exploitation of the React component vulnerability CVE-2025-55182."},{"date":"2025-12-06T00:36:16Z","kind":"github_poc","ref":"https://github.com/emredavut/CVE-2025-55182","stars":314,"title":"RSC/Next.js RCE Vulnerability Detector \u0026 PoC Chrome Extension – CVE-2025-55182 \u0026 CVE-2025-66478"},{"date":"2025-12-06T14:36:55Z","kind":"github_poc","ref":"https://github.com/zack0x01/CVE-2025-55182-advanced-scanner-","stars":281,"title":null},{"date":"2025-12-06T21:54:13Z","kind":"github_poc","ref":"https://github.com/ynsmroztas/NextRce","stars":267,"title":"React Shell \u0026 Next.js RSC Exploit Tool (CVE-2025-55182)"}],"tier":"exploited"},"has_fix":true,"headline":"Meta React Server Components Remote Code Execution","id":"CVE-2025-55182","indexable":true,"kev":{"dateAdded":"2025-12-05","dueDate":"2025-12-12","knownRansomwareCampaignUse":"Known","product":"React Server Components","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","vendorProject":"Meta","vulnerabilityName":"Meta React Server Components Remote Code Execution Vulnerability"},"kind":"cve","links":{"ecosystem":"npm","product":"vercel:next.js","products":["vercel:next.js"],"type":"deserialization","year":"2025"},"n_packages":18,"n_references":2,"next":{"headline":"Source Code Exposure Vulnerability in React Server Components","id":"CVE-2025-55183"},"packages":[{"ecosystem":"npm","fixed":["19.0.1"],"introduced":["19.0.0"],"last_affected":[],"package":"react-server-dom-parcel","purl":null,"source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.0.1"],"introduced":["19.0.0"],"last_affected":[],"package":"react-server-dom-parcel","purl":"pkg:npm/react-server-dom-parcel","source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.1.2"],"introduced":["19.1.0"],"last_affected":[],"package":"react-server-dom-parcel","purl":null,"source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.1.2"],"introduced":["19.1.0"],"last_affected":[],"package":"react-server-dom-parcel","purl":"pkg:npm/react-server-dom-parcel","source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.2.1"],"introduced":["19.2.0"],"last_affected":[],"package":"react-server-dom-parcel","purl":null,"source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.2.1"],"introduced":["19.2.0"],"last_affected":[],"package":"react-server-dom-parcel","purl":"pkg:npm/react-server-dom-parcel","source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.0.1"],"introduced":["19.0.0"],"last_affected":[],"package":"react-server-dom-turbopack","purl":null,"source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.0.1"],"introduced":["19.0.0"],"last_affected":[],"package":"react-server-dom-turbopack","purl":"pkg:npm/react-server-dom-turbopack","source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.1.2"],"introduced":["19.1.0"],"last_affected":[],"package":"react-server-dom-turbopack","purl":null,"source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.1.2"],"introduced":["19.1.0"],"last_affected":[],"package":"react-server-dom-turbopack","purl":"pkg:npm/react-server-dom-turbopack","source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.2.1"],"introduced":["19.2.0"],"last_affected":[],"package":"react-server-dom-turbopack","purl":null,"source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.2.1"],"introduced":["19.2.0"],"last_affected":[],"package":"react-server-dom-turbopack","purl":"pkg:npm/react-server-dom-turbopack","source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.0.1"],"introduced":["19.0.0"],"last_affected":[],"package":"react-server-dom-webpack","purl":null,"source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.0.1"],"introduced":["19.0.0"],"last_affected":[],"package":"react-server-dom-webpack","purl":"pkg:npm/react-server-dom-webpack","source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.1.2"],"introduced":["19.1.0"],"last_affected":[],"package":"react-server-dom-webpack","purl":null,"source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.1.2"],"introduced":["19.1.0"],"last_affected":[],"package":"react-server-dom-webpack","purl":"pkg:npm/react-server-dom-webpack","source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.2.1"],"introduced":["19.2.0"],"last_affected":[],"package":"react-server-dom-webpack","purl":null,"source":"GHSA-fv66-9v8q-g76r"},{"ecosystem":"npm","fixed":["19.2.1"],"introduced":["19.2.0"],"last_affected":[],"package":"react-server-dom-webpack","purl":"pkg:npm/react-server-dom-webpack","source":"GHSA-fv66-9v8q-g76r"}],"prev":{"headline":"Denial of service in proxygen","id":"CVE-2025-55181"},"products":["react-server-dom-parcel","react-server-dom-turbopack","react-server-dom-webpack"],"published":"2025-12-03","related":[{"cvss_score":7.5,"headline":"React Server Components have multiple Denial of Service Vulnerabilities","id":"CVE-2026-23864","kev_date_added":null,"published":"2026-01-26"},{"cvss_score":7.5,"headline":"Denial of Service Vulnerability in React Server Components","id":"CVE-2025-55184","kev_date_added":null,"published":"2025-12-11"},{"cvss_score":7.5,"headline":"Denial of Service Vulnerability in React Server Components","id":"CVE-2025-67779","kev_date_added":null,"published":"2025-12-11"},{"cvss_score":6.1,"headline":"Cross-Site Scripting in react-dom","id":"CVE-2018-6341","kev_date_added":null,"published":"2018-12-31"},{"cvss_score":5.3,"headline":"Source Code Exposure Vulnerability in React Server Components","id":"CVE-2025-55183","kev_date_added":null,"published":"2025-12-11"}],"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":"open","licence":"CC0 1.0","name":"CISA KEV"},{"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":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-07","vendors":["Meta"]},"summary":"Attackers can execute arbitrary code remotely by sending malicious payloads to Server Function endpoints in vulnerable React Server Components packages.","url":"https://insights.sbomify.com/CVE-2025-55182/"}