CVE-2026-79916

Critical

Description

MaxKB is an open-source AI assistant for enterprise. Prior to 2.10.5-lts, authenticated workspace members can inject control characters into AWS Bedrock access_key_id and secret_access_key fields that _update_aws_credentials writes to /root/.aws/credentials without safe parsing. An attacker can append a new AWS profile containing credential_process, then select that profile during a later model-validation request so botocore executes an attacker-controlled command as root. This vulnerability is fixed in 2.10.5-lts.

SeverityCritical

CVSS9.1

Exploit probability—

ProductMaxKB

PublishedSep 21, 2026

First seenSep 21, 2026

Weakness typeCWE-78OS command injection

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

Product	Affected versions	Fixed in
1Panel-dev MaxKB	< 2.10.5-lts	—

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