CVE-2025-59341

Local File Inclusion in esm.sh

State: Published
Severity: 7.7 High
Published: Sep 17, 2025
Updated: Sep 17, 2025
Reserved: Sep 12, 2025

Description

esm.sh is a nobuild content delivery network(CDN) for modern web development. In 136 and earlier, a Local File Inclusion (LFI) issue was identified in the esm.sh service URL handling. An attacker could craft a request that causes the server to read and return files from the host filesystem (or other unintended file sources).

Scores

CVSS	Score	Vector	Source
4.0	7.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P	GitHub_M

Weaknesses

CWE-23 Relative Path Traversal

Affected Products

Product	Versions
esm.shesm-dev	<= 136Affected

References

https://github.com/esm-dev/esm.sh/security/advisories/GHSA-49pv-gwxp-532r
https://github.com/esm-dev/esm.sh/blob/c62f191d32639314ff0525d1c3c0e19ea2b16143/server/router.go#L1168

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