esm.sh is a nobuild content delivery network(CDN) for modern web development. Prior to version 136, the esm.sh CDN service is vulnerable to path traversal during NPM package tarball extraction. An attacker can craft a malicious NPM package containing specially crafted file paths (e.g., package/../../tmp/evil.js). When esm.sh downloads and extracts this package, files may be written to arbitrary locations on the server, escaping the intended extraction directory. This issue has been patched in version 136.
Metrics
Affected Vendors & Products
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Advisories
| Source | ID | Title |
|---|---|---|
 Github GHSA |
GHSA-h3mw-4f23-gwpw | esm.sh CDN service has arbitrary file write via tarslip |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 19 Nov 2025 17:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | esm.sh is a nobuild content delivery network(CDN) for modern web development. Prior to version 136, the esm.sh CDN service is vulnerable to path traversal during NPM package tarball extraction. An attacker can craft a malicious NPM package containing specially crafted file paths (e.g., package/../../tmp/evil.js). When esm.sh downloads and extracts this package, files may be written to arbitrary locations on the server, escaping the intended extraction directory. This issue has been patched in version 136. | |
| Title | esm.sh CDN service has arbitrary file write via tarslip | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-11-19T17:32:46.835Z
Reserved: 2025-11-13T15:36:51.682Z
Link: CVE-2025-65025
Vulnrichment
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NVD
Status : Awaiting Analysis
Published: 2025-11-19T18:15:49.840
Modified: 2025-11-19T19:14:59.327
Link: CVE-2025-65025
Redhat
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OpenCVE Enrichment
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