Moole Vulnerability Database

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High

CVE-2025-50180

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.

VectorNETWORK

PublishedFeb 25, 2026, 16:23

Published Bysecurity-advisories@github.com

Base Score

Score7.5

Affected Versions

Package (Ecosystem)IntroducedFixedLimit

github.com/esm-dev/esm.sh(Go)00.0.0-20250616164159-0593516c4cfaN/A

References

https://github.com/esm-dev/esm.sh/blob/f80ff8c8d58749e77fa964abde468fc61f8bd89e/internal/fetch/fetch.go#L13
https://github.com/esm-dev/esm.sh/blob/f80ff8c8d58749e77fa964abde468fc61f8bd89e/server/router.go#L511
https://github.com/esm-dev/esm.sh/commit/0593516c4cfab49ad3b4900416a8432ff2e23eb0
https://github.com/esm-dev/esm.sh/pull/1149
https://github.com/esm-dev/esm.sh/releases/tag/v137
https://github.com/esm-dev/esm.sh/security/advisories/GHSA-3c9r-837r-qqm4

Weakness Type

CWE-918

CVSS Metrics

Base Score

8.7

Vector String

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Base SeverityHigh

Version

4.0

Attack Vector (AV)

NETWORK