CVE-2026-113731
djust: Arbitrary absolute-path file read in the find_handlers_for_template MCP tool
- State
- Published
- Severity
- 3.3 Low
- Published
- Oct 20, 2026
- Updated
- Oct 28, 2026
- Reserved
- Oct 20, 2026
Description
djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. From 0.9.0 until 1.0.10, 1.1.7, 1.2.4, and 1.3.0rc8, the find_handlers_for_template MCP tool in python/djust/mcp/server.py accepts an existing absolute template_path and reads it without restricting the resolved path to the project or configured template directories. A local MCP client can use the tool as a file existence and readability oracle and can obtain substrings that match the tool's dj-click, dj-submit, dj-change, dj-input, dj-keydown, or dj-keyup attribute pattern from files readable by the djust process. The maintainer assessment states that the MCP server communicates over local stdio as the same operating-system user and has no network listener, and the tool does not return arbitrary raw file contents. This issue is fixed in versions 1.0.10, 1.1.7, 1.2.4, and 1.3.0rc8.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 3.3 Low | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | GitHub_M |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
djustdjust-org |
|
References
- https://github.com/djust-org/djust/security/advisories/GHSA-r57g-mc79-8hj2
- https://github.com/djust-org/djust/commit/45a5045793ebe7c9c2df86b0ad34275af6822619
- https://github.com/djust-org/djust/commit/744bccf699c65c815d9379b36236a7c5592a339b
- https://github.com/djust-org/djust/commit/85eed7caaf620bdb08986f2f3bb79432c0d3d715
- https://github.com/djust-org/djust/commit/a62caf6b4ef540ad688d4dfdfa407ff914c78728
- https://github.com/djust-org/djust/releases/tag/v1.0.10
- https://github.com/djust-org/djust/releases/tag/v1.1.7
- https://github.com/djust-org/djust/releases/tag/v1.2.4
- https://github.com/djust-org/djust/releases/tag/v1.3.0rc8
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