{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-94031 exists.","fix":"No fix has been published for CVE-2026-94031 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-94031 is a medium-severity command injection vulnerability in 0-Gaurav-0 nexus-mcp, published on 20 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-94031 and fix it if it is affected.\n\nWhat it is: CVE-2026-94031 is a medium-severity command injection vulnerability in 0-Gaurav-0 nexus-mcp, published on 20 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-94031 exists.\n\nAffected product: 0-Gaurav-0 nexus-mcp. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-94031/ (Markdown: https://insights.sbomify.com/CVE-2026-94031/index.md)","id":"CVE-2026-94031","markdown":"https://insights.sbomify.com/CVE-2026-94031/index.md","name":"CVE-2026-94031","record":{"aliases":["GHSA-c2f2-x95m-p9vw"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"MCP tool library","requires_auth":"low_privilege","summary":"Remote attackers can execute arbitrary commands via the nexus_reauth MCP tool due to unsanitized input in child_process.exec.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-77","name":"Improper Neutralization of Special Elements used in a Command"},{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"A vulnerability was detected in 0-Gaurav-0 nexus-mcp aed0026e7ac1f23dc940e46e9fd3a2da6904f914. Affected by this issue is the function child_process.exec of the file src/auth/browser.ts of the component nexus_reauth MCP tool. The manipulation of the argument url results in command injection. The attack may be performed from remote. The exploit is now public and may be used. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The project was informed of the problem early through an issue report but has not responded yet.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"0-Gaurav-0 nexus-mcp nexus_reauth MCP tool browser.ts child_process.exec command injection","id":"CVE-2026-94031","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"itsourcecode Leave Management System index.php sql injection","id":"CVE-2026-94032"},"packages":[],"prev":{"headline":"SerenityOS LibGfx BMPLoader.cpp decode_bmp_pixel_data integer overflow","id":"CVE-2026-94030"},"products":["nexus-mcp"],"published":"2026-09-20","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-21","vendors":["0-Gaurav-0"]},"summary":"Remote attackers can execute arbitrary commands via the nexus_reauth MCP tool due to unsanitized input in child_process.exec.","url":"https://insights.sbomify.com/CVE-2026-94031/"}