CVE-2026-53779 — WebP Server Go < 0.15.0 Path Traversal via Backslash Encoding on Windows
WebP Server Go through 0.14.4 contains a path traversal vulnerability on Windows that allows unauthenticated attackers to read files outside the configured IMG_PATH directory by…
Published: 2026-06-22 · CVSS: 8.7 · CVSS 4.0
WebP Server Go through 0.14.4 contains a path traversal vulnerability on Windows that allows unauthenticated attackers to read files outside the configured IMG_PATH directory by sending requests with percent-encoded backslashes (%5C) that bypass the path.Clean() sanitization in handler/router.go. Attackers can exploit the discrepancy between Go's forward-slash-only path normalization and Windows file system APIs that treat backslashes and forward slashes as equivalent to access arbitrary files on the host filesystem accessible to the server process.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7