Red Hat Enterprise Linux AI 3 logs_dir path traversal

Summaryinfo

A vulnerability described as critical has been identified in Red Hat Enterprise Linux AI 3. This issue affects some unknown processing. Executing a manipulation of the argument logs_dir can lead to path traversal. This vulnerability is handled as CVE-2026-6855. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability was found in Red Hat Enterprise Linux AI 3. It has been declared as critical. This vulnerability affects an unknown code block. The manipulation of the argument logs_dir with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at access.redhat.com. This vulnerability was named CVE-2026-6855 since 04/22/2026. The exploitation appears to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/22/2026). This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Operating System

Vendor

• Red Hat

Name

• Enterprise Linux AI

Version

• 3

License

• open-source

Website

• Vendor: https://www.redhat.com/

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