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CVE-2026-6855

Instructlab: instructlab: path traversal allows arbitrary directory creation and file write

Published: Apr 22, 2026Updated: Apr 22, 2026 Sources: CVE List NVD
NVD MITRE
7.1CVSS
HIGH

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None

Weaknesses

CWE-22

Affected Products

Red Hat Enterprise Linux AI (RHEL AI) 3
Red Hat

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Workaround Available

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

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

Timeline

Published
Apr 22, 2026
Last Updated
Apr 22, 2026

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