Vulnerability in Dropbox Mcp-Server-Dash
CVE-2026-81102
The Dash MCP server bound its listener to the loopback address but never checked the host a request named. src/mcp_server_dash.py constructed the server for its network mode with the interface restricted to loopback and no transport-security settings, so a name that had been pointed at the loopback address still reached the listener while carrying the attacker's host name. A page in a visitor's browser could therefore drive the local server and invoke its company-search and file-detail tools under the Dropbox credential the server holds. Only the network mode was reachable this way; the standard input mode was not. The fix supplies transport-security settings that enable host checking and allow only the loopback name and port, rejecting other hosts before a tool runs. The repository publishes no versions, so the affected boundary is the commit preceding the fix.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (7.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
Weakness classification (CWE)
References
- github.com/dropbox/mcp-server-dash (product)
- github.com/dropbox/mcp-server-dash/pull/12 (issue-tracking, patch)
- www.vulncheck.com/advisories/dropbox-dash-mcp-server-dns-rebinding-via-missing-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-81102?
- CVE-2026-81102 is a low-severity vulnerability in Dropbox Mcp-Server-Dash, classified under Origin Validation Error. CVSS score: 3.1/10. Published 2026-08-27.
- How severe is CVE-2026-81102?
- Low severity. CVSS v3 base score is 3.1 out of 10.