CVE-2026-28459: Openclaw

High severity, CVSS 8.1. EPSS: 0.6% chance of exploitation in the next 30 days.

OpenClaw versions prior to 2026.2.12 fail to validate the sessionFile path parameter, allowing authenticated gateway clients to write transcript data to arbitrary locations on the host filesystem. Attackers can supply a sessionFile path outside the sessions directory to create files and append data repeatedly, potentially causing configuration corruption or denial of service.

Affected products

• Openclaw Openclaw: before 2026.2.12 (fixed in 2026.2.12)

Published 2026-03-05. Last modified 2026-06-17.