What’s Vulnerable › Vulnerabilities

CVE-2026-6855: Instructlab: instructlab: path traversal allows arbitrary directory creation and file write

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-22 · updated 2026-10-26
• Weakness: CWE-22

Description

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.

Affected products

• RedHat Enterprise Linux Ai: 3.0
• RedHat Instructlab: all versions

References

• https://access.redhat.com/security/cve/CVE-2026-6855
• https://bugzilla.redhat.com/show_bug.cgi?id=2460013

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