CVE-2026-23644

HIGH

esm.sh <0.0.0-20260116051925-c62ab83c589e - Path Traversal

Title source: llm
STIX 2.1

Description

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 but does not prevent absolute paths in a malicious tar file. Commit https://github.com/esm-dev/esm.sh/commit/9d77b88c320733ff6689d938d85d246a3af9af16, corresponding to pseudoversion 0.0.0-20260116051925-c62ab83c589e, fixes this issue.

References (4)

Core 4

Scores

CVSS v3 7.5
EPSS 0.0011
EPSS Percentile 28.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-22
Status published
Products (2)
esm/esm.sh < 136
esm-dev/esm.sh 0.0.1Go
Published Jan 18, 2026
Tracked Since Feb 18, 2026