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CVE-2026-34200

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 t
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:fcc9f104cebb994fff3f691611c357591a7a6477f70666a5cc14b4e38dbc613c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-306","description":"CWE-306: Missing Authentication for Critical Function","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0120d1c3ffa44c394c9c1d99e5d54e92f0ce311ff2294348b3e47d3c95d3a9af · sha256:8efde760004bf15d… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-942","description":"CWE-942: Permissive Cross-domain Policy with Untrusted Domains","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0120d1c3ffa44c394c9c1d99e5d54e92f0ce311ff2294348b3e47d3c95d3a9af · sha256:8efde760004bf15d… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"nhost","vendor":"nhost","versions":[{"status":"affected","version":"< 1.41.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0120d1c3ffa44c394c9c1d99e5d54e92f0ce311ff2294348b3e47d3c95d3a9af · sha256:8efde760004bf15d… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":7.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"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","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0120d1c3ffa44c394c9c1d99e5d54e92f0ce311ff2294348b3e47d3c95d3a9af · sha256:8efde760004bf15d… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-306","description":"CWE-306: Missing Authentication for Critical Function","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0120d1c3ffa44c394c9c1d99e5d54e92f0ce311ff2294348b3e47d3c95d3a9af · sha256:8efde760004bf15d… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-942","description":"CWE-942: Permissive Cross-domain Policy with Untrusted Domains","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0120d1c3ffa44c394c9c1d99e5d54e92f0ce311ff2294348b3e47d3c95d3a9af · sha256:8efde760004bf15d… · /containers/cna/problemTypes/1/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/nhost/nhost/commit/15eae9285f9dce63e184b9bb24616474ffa5ccc9","tags":["x_refsource_MISC"],"url":"https://github.com/nhost/nhost/commit/15eae9285f9dce63e184b9bb24616474ffa5ccc9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0120d1c3ffa44c394c9c1d99e5d54e92f0ce311ff2294348b3e47d3c95d3a9af · sha256:8efde760004bf15d… · /containers/cna/references/2
{"name":"https://github.com/nhost/nhost/pull/4060","tags":["x_refsource_MISC"],"url":"https://github.com/nhost/nhost/pull/4060"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0120d1c3ffa44c394c9c1d99e5d54e92f0ce311ff2294348b3e47d3c95d3a9af · sha256:8efde760004bf15d… · /containers/cna/references/1
{"name":"https://github.com/nhost/nhost/security/advisories/GHSA-6c5x-3h35-vvw2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nhost/nhost/security/advisories/GHSA-6c5x-3h35-vvw2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0120d1c3ffa44c394c9c1d99e5d54e92f0ce311ff2294348b3e47d3c95d3a9af · sha256:8efde760004bf15d… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/nhost/nhost/security/advisories/GHSA-6c5x-3h35-vvw2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0120d1c3ffa44c394c9c1d99e5d54e92f0ce311ff2294348b3e47d3c95d3a9af · sha256:8efde760004bf15d… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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