CVE-2026-53777: Perryts Perry

High severity, CVSS 8.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Perry before 0.5.1159 contains a path traversal vulnerability that allows a malicious build server to write arbitrary content to any location writable by the running process by supplying unsanitized path components in the artifact_name field of ArtifactReady WebSocket messages. Attackers controlling the server URL can deliver traversal payloads through the artifact_name or download_path fields, causing the client to overwrite sensitive files or expose arbitrary local files to an attacker-accessible location.

Affected products

• Perryts Perry: before 0.5.1159 (fixed in 0.5.1159)

Published 2026-06-11. Last modified 2026-07-14.