Path Traversal in Cybercentrecanada Assemblyline
CVE-2025-55013
The Assemblyline 4 Service Client interfaces with the API to fetch tasks and publish the result for a service in Assemblyline 4. In versions below 4.6.1.dev138, the Assemblyline 4 Service Client (task_handler.py) accepts a SHA-256 value returned by the service server and uses it directly as a local file name.A malicious or compromised server (or any MITM that can speak to client) can return a path-traversal payload such as `../../../etc/cron.d/evil` and force the client to write the downloaded bytes to an arbitrary location on disk. This is fixed in version 4.6.1.dev138.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.006 (46.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000
Affected products
- Cybercentrecanada Assemblyline — versions < 4.6.1.dev138
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-55013?
- CVE-2025-55013 is a medium-severity vulnerability in Cybercentrecanada Assemblyline, classified under Relative Path Traversal. CVSS score: 4.2/10. Published 2025-08-09.
- How severe is CVE-2025-55013?
- Medium severity. CVSS v3 base score is 4.2 out of 10.