CVE-2026-108582
GenOffice through 0.11.505 Insecure Permissions in HTTP MCP Server File Store
- State
- Published
- Severity
- 6.8 Medium
- Published
- Oct 10, 2026
- Updated
- Oct 14, 2026
- Reserved
- Oct 10, 2026
Description
GenOffice through 0.11.505 contains an incorrect permissions vulnerability in its HTTP MCP server file store that allows local unprivileged users to read uploaded and generated documents. Attackers can list the world-readable genoffice-mcp-http directory under the system temporary directory to read client uploads and converted outputs, bypassing the HTTP bearer token.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-732 Incorrect Permission Assignment for Critical Resource
Affected Products
| Product | Versions |
|---|---|
GenOfficegenspark-ai |
|
References
- https://hackmd.io/@haind/genoffice-http-mcp-temp-file-disclosurethird-party-advisory
- https://github.com/genspark-ai/genoffice/blob/v0.11.505/packages/cli/src/mcp/files.ts#L70-L90technical-description
- GenOffice v0.11.505 Release Notesproductrelease-notes
- VulnCheck Advisory: GenOffice through 0.11.505 Insecure Permissions in HTTP MCP Server File Storethird-party-advisory
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