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CVE-2026-65056

mcp-webresearch 0.1.7 contains a server-side request forgery vulnerability that allows attackers to access internal network services by supplying loopback, link-local, or cloud metadata addresses to the visit_page tool, which only validates the URL protocol without filtering private or reserved IP ranges. Attackers can steer the LLM-controlled URL argument through prompt injection to navigate the server's Playwright browser to internal endpoints such as cloud instance metadata services, causing
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:05b746816bc09f87606a823a8ce7fe3560a9d66dac6dfca019755745126e6a38
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d9e5ffee1ecce41feb9b036f76aff3efbeb05577bd0505092fb9c8a92a4b57b · sha256:e4350d1930695b90… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.3,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d9e5ffee1ecce41feb9b036f76aff3efbeb05577bd0505092fb9c8a92a4b57b · sha256:e4350d1930695b90… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"affected","product":"mcp-webresearch","vendor":"mzxrai","versions":[{"lessThanOrEqual":"0.1.7","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0d9e5ffee1ecce41feb9b036f76aff3efbeb05577bd0505092fb9c8a92a4b57b · sha256:e4350d1930695b90… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d9e5ffee1ecce41feb9b036f76aff3efbeb05577bd0505092fb9c8a92a4b57b · sha256:e4350d1930695b90… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.3,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d9e5ffee1ecce41feb9b036f76aff3efbeb05577bd0505092fb9c8a92a4b57b · sha256:e4350d1930695b90… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d9e5ffee1ecce41feb9b036f76aff3efbeb05577bd0505092fb9c8a92a4b57b · sha256:e4350d1930695b90… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["exploit"],"url":"https://github.com/geo-chen/oss/blob/main/mcp-webresearch.md"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d9e5ffee1ecce41feb9b036f76aff3efbeb05577bd0505092fb9c8a92a4b57b · sha256:e4350d1930695b90… · /containers/adp/0/references/0
{"name":"Blog Post","tags":["product"],"url":"https://github.com/geo-chen/oss/blob/main/mcp-webresearch.md"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d9e5ffee1ecce41feb9b036f76aff3efbeb05577bd0505092fb9c8a92a4b57b · sha256:e4350d1930695b90… · /containers/cna/references/0
{"name":"Product","tags":["patch"],"url":"https://www.npmjs.com/package/@mzxrai/mcp-webresearch"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d9e5ffee1ecce41feb9b036f76aff3efbeb05577bd0505092fb9c8a92a4b57b · sha256:e4350d1930695b90… · /containers/cna/references/1
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/mcp-webresearch-server-side-request-forgery-in-visit-page-due-to-missing-internal-ip-filtering"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d9e5ffee1ecce41feb9b036f76aff3efbeb05577bd0505092fb9c8a92a4b57b · sha256:e4350d1930695b90… · /containers/cna/references/2

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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