GHSA-pv77-wrq6-gq73HighCVSS 7.5
WebP Server Go through 0.14.4 contains a path traversal vulnerability on Windows that allows...
🔗 CVE IDs covered (1)
📋 Description
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.
🔗 References (5)
- https://nvd.nist.gov/vuln/detail/CVE-2026-53779
- https://github.com/webp-sh/webp_server_go/pull/451
- https://github.com/webp-sh/webp_server_go/commit/eb3b5f9289b331cb639cd610b0d1c532d2cc24e0
- https://www.vulncheck.com/advisories/webp-server-go-path-traversal-via-backslash-encoding-on-windows
- https://github.com/advisories/GHSA-pv77-wrq6-gq73