What is CVE-2026-51853?

CVE-2026-51853 is a high-severity vulnerability in N/a, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-09-30.

How severe is CVE-2026-51853?

High severity. CVSS v3 base score is 7.5 out of 10.

Path Traversal in N/a

CVE-2026-51853

agent-zero 1.7, 1.8, 1.9, and 1.10 is vulnerable to Directory Traversal in python/helpers/file_browser.py:FileBrowser.__init__. The FileBrowser class initializes with the host root directory as the workspace, allowing the agent to access any file on the system without restriction.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2026-09-30 · last modified 2026-10-01.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (24.0th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Weakness classification (CWE)

CWE-22 — Path Traversal

References

Frequently asked questions

What is CVE-2026-51853?: CVE-2026-51853 is a high-severity vulnerability in N/a, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-09-30.
How severe is CVE-2026-51853?: High severity. CVSS v3 base score is 7.5 out of 10.