RCE in 1panel-Dev Maxkb

CVE-2026-79916

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.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-79916?
CVE-2026-79916 is a critical-severity vulnerability in 1panel-Dev Maxkb, classified under OS Command Injection. CVSS score: 9.1/10. Published 2026-09-21.
How severe is CVE-2026-79916?
Critical severity. CVSS v3 base score is 9.1 out of 10.