CVE-2026-113731: 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.

CVE-2026-113731 · Severity: low · CVSS 3.3 · Published 2026-10-20

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.

Technologies: djust (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2026-113731 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-113731 being exploited in the wild.
How severe is CVE-2026-113731?
Low severity, with a CVSS score of 3.3, published 20 October 2026.
Which products and versions are affected?
djust (PyPI) >= 0.9.0, <= 1.0.9, ECOSYSTEM:introduced=0.9.0,fixed=1.0.10.
Is there a fix for CVE-2026-113731?
Yes. djust (PyPI): upgrade to 1.0.10 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-113731?
Check whether you run djust (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • djust (PyPI): upgrade to 1.0.10 or later
    pip install "djust>=1.0.10"

Affected products

  • djust (PyPI) >= 0.9.0, <= 1.0.9, ECOSYSTEM:introduced=0.9.0,fixed=1.0.10

Identifiers

  • CVE-2026-113731
  • GHSA-r57g-mc79-8hj2

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