A flaw was found in InstructLab. A local attacker could exploit a path traversal vulnerability in the chat session handler by manipulating the `logs_dir` parameter. This allows the attacker to create new directories and write files to arbitrary locations on the system, potentially leading to unauthorized data modification or disclosure.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://access.redhat.com/security/cve/CVE-2026-6855 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2460013 Issue Tracking, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.1 · redhatNVD modified 2026-10-26 22:10
Affected (CPE criteria) 2
cpe:2.3:a:redhat:instructlab:-:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_ai:3.0:*:*:*:*:*:*:*
References 2
- https://access.redhat.com/security/cve/CVE-2026-6855 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2460013 Issue Tracking, Vendor Advisory