CVE-2026-10211: AstrBotDevs AstrBot incorrect authorization in filesystem tools

CVE-2026-10211 · Severity: medium · CVSS 6.3 · Published 2026-06-01

AstrBot, a chatbot and automation framework, contains a security flaw that allows non-administrator users to write or edit files they should not have access to. By exploiting a mismatch in how the system checks file permissions, an attacker can inject malicious code into the bot's shared skills directory. This could lead to a complete takeover of the bot's functions or the underlying server when those malicious skills are executed.

Quick answers

Is CVE-2026-10211 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-10211 being exploited in the wild.
How severe is CVE-2026-10211?
Medium severity, with a CVSS score of 6.3, published 1 June 2026.
Which products and versions are affected?
AstrBotDevs AstrBot <= 4.23.6.
Is there a fix for CVE-2026-10211?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-10211 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-10211?
Check whether anything you run is named in the advisory. 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.

Technical details

An authorization bypass exists in AstrBot's filesystem tools due to a logic error in the `_normalize_rw_path` function within `astrbot/core/tools/computer_tools/fs.py`. The application incorrectly reuses `_read_allowed_roots` (which includes global skill directories) to validate write and edit operations for restricted users. By providing an absolute path to the `FileWriteTool` or `FileEditTool`, a remote authenticated attacker with low privileges can bypass intended workspace restrictions. This allows the attacker to write arbitrary files into the `data/skills` directory, potentially leading to persistent malicious skill injection and remote code execution (RCE) when the injected skills are loaded. As of the advisory date, no official patch has been released.

Affected products

  • AstrBotDevs AstrBot <= 4.23.6

Timeline

  • 2026-05-06: disclosed: Initial disclosure via GitHub Gist by researcher YLChen-007
  • 2026-06-01: advisory: CVE published to NVD via VulDB

References

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