{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34200 exists.","fix":"No fix has been published for CVE-2026-34200 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-34200 is a high-severity missing authorization vulnerability in nhost, published on 31 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-34200 and fix it if it is affected.\n\nWhat it is: CVE-2026-34200 is a high-severity missing authorization vulnerability in nhost, published on 31 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34200 exists.\n\nAffected product: nhost. 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-2026-34200/ (Markdown: https://insights.sbomify.com/CVE-2026-34200/index.md)","id":"CVE-2026-34200","markdown":"https://insights.sbomify.com/CVE-2026-34200/index.md","name":"CVE-2026-34200","record":{"aliases":["GHSA-6c5x-3h35-vvw2"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["privilege_escalation","data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Nhost CLI MCP Server","requires_auth":"none","summary":"Attackers can invoke privileged tools via cross-origin requests if the MCP server is explicitly bound to a network port without authentication.","user_interaction":"required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"cli","vendor":"nhost"}],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-942","name":"Permissive Cross-domain Security Policy with Untrusted Domains"},{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"description":"Nhost is an open source Firebase alternative with GraphQL. Prior to version 1.41.0, The Nhost CLI MCP server, when explicitly configured to listen on a network port, applies no inbound authentication and does not enforce strict CORS. This allows a malicious website visited on the same machine to issue cross-origin requests to the MCP server and invoke privileged tools using the developer's locally configured credentials. This vulnerability requires two explicit, non-default configuration steps to be exploitable. The default nhost mcp start configuration is not affected. This issue has been patched in version 1.41.0.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-03-26","github_poc":1,"max_poc_stars":4,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-03-26T16:52:17Z","kind":"github_poc","ref":"https://github.com/skoveit/CVE-2026-34200","stars":4,"title":"CVE-2026-34200 PoC"}],"tier":"weaponised"},"has_fix":false,"headline":"Nhost CLI MCP Server: Missing Inbound Authentication on Explicitly Bound Network Port","id":"CVE-2026-34200","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Zebra node crash — V5 transaction hash panic (P2P reachable)","id":"CVE-2026-34202"},"packages":[],"prev":{"headline":"Coolify: Password reset link poisoning via X-Forwarded-Host header spoofing","id":"CVE-2026-34198"},"products":["nhost"],"published":"2026-03-31","related":[{"cvss_score":5.4,"headline":"Nhost CLI local configserver allows cross-origin unauthenticated read/write access to local development configuration and secrets","id":"CVE-2026-47671","kev_date_added":null,"published":"2026-07-21"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-03-31","vendors":["nhost"]},"summary":"Attackers can invoke privileged tools via cross-origin requests if the MCP server is explicitly bound to a network port without authentication.","url":"https://insights.sbomify.com/CVE-2026-34200/"}