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CVE-2025-50180

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/25/2026

Last Modified2/27/2026

Sourcenvd

Honeypot Sightings0

Affected Products

esm:esm.sh

Weaknesses (CWE)

CWE-918

References

https://github.com/esm-dev/esm.sh/blob/f80ff8c8d58749e77fa964abde468fc61f8bd89e/internal/fetch/fetch.go#L13(security-advisories@github.com)

https://github.com/esm-dev/esm.sh/blob/f80ff8c8d58749e77fa964abde468fc61f8bd89e/server/router.go#L511(security-advisories@github.com)

https://github.com/esm-dev/esm.sh/commit/0593516c4cfab49ad3b4900416a8432ff2e23eb0(security-advisories@github.com)

https://github.com/esm-dev/esm.sh/pull/1149(security-advisories@github.com)

https://github.com/esm-dev/esm.sh/releases/tag/v137(security-advisories@github.com)

https://github.com/esm-dev/esm.sh/security/advisories/GHSA-3c9r-837r-qqm4(security-advisories@github.com)

IOC Correlations

No correlations recorded

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