{"answers":{"affected":"4 open source packages ship an affected version, including @nestjs/microservices.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-102281 exists.","fix":"Upgrade @nestjs/microservices to a fixed version for your release line: 11.2.4 or 12.0.2.","what":"CVE-2026-102281 is a high-severity denial of service vulnerability in nestjs nest, published on 28 Sep 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-2026-102281 and fix it if it is affected.\n\nWhat it is: CVE-2026-102281 is a high-severity denial of service vulnerability in nestjs nest, published on 28 Sep 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-2026-102281 exists.\n\nAffected packages and fixed versions:\n- @nestjs/microservices (npm): affected all versions; fixed in 11.2.4\n- @nestjs/microservices (npm): affected all versions; fixed in 11.2.4\n- @nestjs/microservices (npm): affected from 12.0.0; fixed in 12.0.2\n- @nestjs/microservices (npm): affected from 12.0.0; fixed in 12.0.2\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-2026-102281/ (Markdown: https://insights.sbomify.com/CVE-2026-102281/index.md)","id":"CVE-2026-102281","markdown":"https://insights.sbomify.com/CVE-2026-102281/index.md","name":"CVE-2026-102281","record":{"aliases":["CLSA-2026-1792265594","CLSA-2026-1792325070","CLSA-2026-1792325945","ECHO-b32d-d5e9-7a88","GHSA-m8vh-jmq9-5rjg"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Node.js web framework","requires_auth":"none","summary":"Attackers can crash NestJS microservices using TCP or RabbitMQ transports by sending deeply nested message patterns, causing unhandled exceptions.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-674","name":"Uncontrolled Recursion"},{"id":"CWE-248","name":"Uncaught Exception"}],"description":"Nest is a framework for building scalable Node.js server-side applications. Prior to 11.2.4 and 12.0.2, a single message with a deeply nested object in its pattern can terminate a NestJS microservice using the TCP or RabbitMQ transport. ServerTCP#handleMessage and ServerRMQ#handleMessage pass a client-controlled non-string pattern to JSON.stringify to derive the handler lookup key; sufficiently deep nesting throws RangeError: Maximum call stack size exceeded, and the unhandled promise rejection terminates Node.js under its default behavior. An attacker who can reach the TCP port or publish to the consumed RabbitMQ queue or exchange can crash the service on demand; other transports are not affected because their patterns arrive as strings. This issue is fixed in versions 11.2.4 and 12.0.2.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Nest: Remote process termination via a deeply nested microservice message pattern","id":"CVE-2026-102281","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":4,"n_references":6,"next":{"headline":"adm-zip extraction preserves SUID/SGID bits from untrusted ZIPs -\u003e local privilege escalation","id":"CVE-2026-102282"},"packages":[{"ecosystem":"npm","fixed":["11.2.4"],"introduced":["0"],"last_affected":[],"package":"@nestjs/microservices","purl":null,"source":"GHSA-m8vh-jmq9-5rjg"},{"ecosystem":"npm","fixed":["11.2.4"],"introduced":["0"],"last_affected":[],"package":"@nestjs/microservices","purl":"pkg:npm/%40nestjs/microservices","source":"GHSA-m8vh-jmq9-5rjg"},{"ecosystem":"npm","fixed":["12.0.2"],"introduced":["12.0.0"],"last_affected":[],"package":"@nestjs/microservices","purl":null,"source":"GHSA-m8vh-jmq9-5rjg"},{"ecosystem":"npm","fixed":["12.0.2"],"introduced":["12.0.0"],"last_affected":[],"package":"@nestjs/microservices","purl":"pkg:npm/%40nestjs/microservices","source":"GHSA-m8vh-jmq9-5rjg"}],"prev":{"headline":"Laravel: XSS in Debug Page Information","id":"CVE-2026-102279"},"products":["nest"],"published":"2026-09-28","related":[],"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-29","vendors":["nestjs"]},"summary":"Attackers can crash NestJS microservices using TCP or RabbitMQ transports by sending deeply nested message patterns, causing unhandled exceptions.","url":"https://insights.sbomify.com/CVE-2026-102281/"}