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Δ / VULNERABILITY RECORD

CVE-2025-9611.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSHIGH / 7.2CVSS 4.0 · disclosure@vulncheck.com
EXPLOITATION STATUSNo cached KEV assertionThe local KEV cache may be unavailable or incomplete; this does not establish absence of exploitation.
RECORD STATUSDeferredModified Oct 08, 2026

Disclosure summary

Microsoft Playwright MCP Server versions prior to 0.0.40 fails to validate the Origin header on incoming connections. This allows an attacker to perform a DNS rebinding attack via a victim’s web browser and send unauthorized requests to a locally running MCP server, resulting in unintended invocation of MCP tool endpoints.

Source-reported weakness categories

CWE-749

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

NIST NVD · NVD-CVE-2025-9611

Open original source · Updated Oct 08, 2026

Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.

Original records & references

Repositories cited by this CVE

The saved CVE record references these repositories. A citation can identify affected software, a fix, or related research; it does not verify exploit code. These citations are separate from automated search matches and local association reviews.

GitHub repository matches

Repository matches are links and GitHub-supplied metadata only. They are not verified working proof-of-concept code. Each supported query is bounded to ten pages and at most 1,000 indexed results. This is not a complete index of GitHub or public exploit research. Coverage can also be limited by provider availability, rate limits, rejected metadata, incomplete search results, manual review, and the recorded refresh time.

0 reviewed associations0 unverified candidates

No stored repository matches

Repository discovery has not recorded an update for this CVE yet.

Discovery progress

0 of 3 discovery queries finished. GitHub returned 0 indexed results; 0 malformed or disallowed results were rejected.

No discovery update has been recorded for this CVE.

View all 0 stored repository matches

PUBLISHED 2026-01-07T12:17:06+00:00
MODIFIED 2026-10-08T16:16:54+00:00
INGESTED 2026-10-11T00:50:35+00:00