CVE-2025-50180

esm.sh is vulnerable to full-response SSRF

Published Feb 25, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
esm.sh is a no-build content delivery network (CDN) for web development. In version 136, esm.sh is vulnerable to a full-response SSRF, allowing an attacker to retrieve information from internal websites through the vulnerability. Version 137 fixes the vulnerability.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-3c9r-837r-qqm4 esm.sh is vulnerable to full-response SSRF
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Esm
Esm esm.sh
CPEs cpe:2.3:a:esm:esm.sh:*:*:*:*:*:*:*:*
Vendors & Products Esm
Esm esm.sh
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Type Values Removed Values Added
First Time appeared Esm-dev
Esm-dev esmsh
Vendors & Products Esm-dev
Esm-dev esmsh
Type Values Removed Values Added
Description esm.sh is a no-build content delivery network (CDN) for web development. In version 136, esm.sh is vulnerable to a full-response SSRF, allowing an attacker to retrieve information from internal websites through the vulnerability. Version 137 fixes the vulnerability.
Title esm.sh is vulnerable to full-response SSRF
Weaknesses CWE-918
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Feb 27, 2026, 6:22 PM
Reserved
Jun 13, 2025, 7:17 PM
Status
Analyzed
Published
Feb 25, 2026, 4:23 PM
Modified
Jun 17, 2026, 9:34 AM