Path Traversal in Esm-dev Esm.sh
CVE-2026-23644
esm.sh is a no-build content delivery network (CDN) for web development. Prior to Go pseeudoversion 0.0.0-20260116051925-c62ab83c589e, the software has a path traversal vulnerability due to an incomplete fix. `path.Clean` normalizes a path…
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.001 (30.1th percentile) — read the EPSS interpretation.
Affected products
- Esm-dev Esm.sh — versions < 0.0.0-20260116051925-c62ab83c589e
Weakness classification (CWE)
References
- https://github.com/esm-dev/esm.sh/security/advisories/GHSA-2657-3c98-63jq (x_refsource_CONFIRM)
- https://github.com/esm-dev/esm.sh/commit/9d77b88c320733ff6689d938d85d246a3af9af16 (x_refsource_MISC)
- https://github.com/esm-dev/esm.sh/commit/c62ab83c589e7b421a0e1376d2a00a4e48161093 (x_refsource_MISC)
- https://pkg.go.dev/vuln/GO-2025-4138 (x_refsource_MISC)