Quick answers
- Is CVE-2026-51852 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-51852 being exploited in the wild.
- How severe is CVE-2026-51852?
- Informational severity, published 30 September 2026.
- Which products and versions are affected?
- Agent0ai Agent Zero 1.7, 1.8, 1.9, 1.10.
- Is there a fix for CVE-2026-51852?
- 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-2026-51852 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-51852?
- Check whether you run Agent0ai Agent Zero 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.
Technical details
The save_file_b64 method in FileBrowser accepts user-supplied file paths without normalization or validation, enabling path traversal via ".." sequences. An authenticated attacker can exploit this by crafting malicious paths (e.g., "../../../../etc/cron.d/malicious") to write files outside the intended workspace directory. The vulnerability requires network access to the web service and a valid CSRF token, allowing arbitrary file write as the application's user.
Affected products
- agent0ai agent-zero 1.7, 1.8, 1.9, 1.10
Timeline
- 2026-09-30: disclosed