SUSE CVE-2026-44593

esm.sh is a no-build content delivery network CDN for web development. In 137 and earlier, the legacy router first retrieves a response from legacyServer, parses the incoming request path, and ultimately writes the data to storage via buildStorage.Put. The router concatenates the path components...

CVE-2026-44593

esm.sh is a no-build content delivery network CDN for web development. In 137 and earlier, the legacy router first retrieves a response from legacyServer, parses the incoming request path, and ultimately writes the data to storage via buildStorage.Put. The router concatenates the path components...

CVE-2026-44593

esm.sh is a no-build content delivery network CDN for web development. In 137 and earlier, the legacy router first retrieves a response from legacyServer, parses the incoming request path, and ultimately writes the data to storage via buildStorage.Put. The router concatenates the path components...

CVE-2026-44593

esm.sh is a no-build content delivery network CDN for web development. In 137 and earlier, the legacy router first retrieves a response from legacyServer, parses the incoming request path, and ultimately writes the data to storage via buildStorage.Put. The router concatenates the path components...

CVE-2026-44593

esm.sh (no-build CDN) vulnerable to path traversal in legacy_router.go. In versions up to 137, the router concatenates request path components without sanitization, generating a storage key that can resolve to arbitrary filesystem paths (example: writing to /tmp/pwned). This allows an attacker to...

EUVD-2026-32910

esm.sh is a no-build content delivery network CDN for web development. In 137 and earlier, the legacy router first retrieves a response from legacyServer, parses the incoming request path, and ultimately writes the data to storage via buildStorage.Put. The router concatenates the path components...

CVE-2026-44593 esm.sh: Legacy Route Path Traversal Can Lead to RCE

esm.sh is a no-build content delivery network CDN for web development. In 137 and earlier, the legacy router first retrieves a response from legacyServer, parses the incoming request path, and ultimately writes the data to storage via buildStorage.Put. The router concatenates the path components...

CVE-2026-44593 esm.sh: Legacy Route Path Traversal Can Lead to RCE

esm.sh is a no-build content delivery network CDN for web development. In 137 and earlier, the legacy router first retrieves a response from legacyServer, parses the incoming request path, and ultimately writes the data to storage via buildStorage.Put. The router concatenates the path components...

CVE-2026-44593: Improper Limitation of a Pathname to a Restricted Directory

esm.sh is a no-build content delivery network CDN for web development. In 137 and earlier, the legacy router first retrieves a response from legacyServer, parses the incoming request path, and ultimately writes the data to storage via buildStorage.Put. The router concatenates the path components...

Directory Traversal

Overview Affected versions of this package are vulnerable to Directory Traversal via the legacyrouter process. An attacker can overwrite arbitrary files and potentially execute code with elevated privileges by crafting a request that manipulates path components to traverse directories and write...

GHSA-3636-H3VX-6465 esm.sh: Legacy Route Path Traversal Can Lead to RCE

Impact - Arbitrary File Write – An attacker can cause the server to write data to any file path it has write permission for. - Privilege Escalation / RCE – By overwriting critical binaries or scripts, the attacker can execute arbitrary code with the server’s privileges. Exploit The legacy router...

PT-2026-40542

Name of the Vulnerable Software and Affected Versions esm.sh versions 137 and earlier Description The legacy router retrieves a response from legacyServer, parses the request path, and writes data to storage using the buildStorage.Put function. Because the router concatenates path components...