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CVE-2026-48989

Windows-MCP is an open-source project that integrates AI agents with Windows. In versions prior to 0.7.5, certain HTTP modes exposed the MCP control plane without authentication while enabling wildcard CORS (allow_origins=*, allow_methods=*, allow_headers=*). Because the same server also exposed a PowerShell tool that executes caller-controlled commands as the Windows user running Windows-MCP, attackers could reach the control plane from arbitrary origins or non-browser clients and achieve arbit
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:cbf3ae367b294703f7aabd5a4b1c645e5803126c988c5c84e42e6425f27cff9a
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"Windows-MCP","vendor":"CursorTouch","versions":[{"status":"affected","version":"< 0.7.5"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d7ff755edca388d691be6281e291885b84e6f633a15b1dad24f4026dee2db7c2 · sha256:6427ae358dfa7c64… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.9,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d7ff755edca388d691be6281e291885b84e6f633a15b1dad24f4026dee2db7c2 · sha256:6427ae358dfa7c64… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"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:d7ff755edca388d691be6281e291885b84e6f633a15b1dad24f4026dee2db7c2 · sha256:6427ae358dfa7c64… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/CursorTouch/Windows-MCP/releases/tag/v0.7.5","tags":["x_refsource_MISC"],"url":"https://github.com/CursorTouch/Windows-MCP/releases/tag/v0.7.5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d7ff755edca388d691be6281e291885b84e6f633a15b1dad24f4026dee2db7c2 · sha256:6427ae358dfa7c64… · /containers/cna/references/1
{"name":"https://github.com/CursorTouch/Windows-MCP/security/advisories/GHSA-vrxg-gm77-7q5g","tags":["x_refsource_CONFIRM"],"url":"https://github.com/CursorTouch/Windows-MCP/security/advisories/GHSA-vrxg-gm77-7q5g"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d7ff755edca388d691be6281e291885b84e6f633a15b1dad24f4026dee2db7c2 · sha256:6427ae358dfa7c64… · /containers/cna/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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