theshit vulnerable to unsafe loading of user-owned Python rules when running as root

Reported December 30, 2025 Issued January 4, 2026 Package theshit (crates.io) Type Vulnerability Categories

• privilege-escalation

• code-execution Keywords #pyo3 #lpe Aliases

• CVE-2025-69257

• GHSA-95qg-89c2-w5hj References

• https://github.com/advisories/GHSA-95qg-89c2-w5hj

• https://github.com/AsfhtgkDavid/theshit/commit/8e0b565e7876a83b0e1cfbacb8af39dadfdcc500 CVSS Score 7.3 HIGH CVSS Details

Attack Vector Local Attack Complexity Low Privileges Required Low User Interaction Required Scope Unchanged Confidentiality Impact High Integrity Impact High Availability Impact High

CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Patched

• >=0.1.1

Affected Functions Version theshit::fix::python::process_python_rules

• <0.1.1

Description

The application loads custom Python rules and configuration files from user-writable locations (e.g., ~/.config/theshit/) without validating ownership or permissions when executed with elevated privileges.

If the tool is invoked with sudo or otherwise runs with an effective UID of root, it continues to trust configuration files originating from the unprivileged user’s environment. This allows a local attacker to inject arbitrary Python code via a malicious rule or configuration file, which is then executed with root privileges.

The patch introduces strict ownership and permission checks for all configuration files and custom rules. The application now enforces that rules are only loaded if they are owned by the effective user executing the tool.

When executed with elevated privileges (EUID=0), the application refuses to load any files that are not owned by root or that are writable by non-root users. When executed as a non-root user, it similarly refuses to load rules owned by other users. This prevents both vertical and horizontal privilege escalation via execution of untrusted code.

Advisory available under CC-BY-4.0 license. Source: https://github.com/advisories/GHSA-95qg-89c2-w5hj