Detections
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SCA: security update for github.com/esm-dev/esm.sh (GHSA-p2v6-84h2-5x4r)

high Tenable Self-Hosted Container Security Plugin ID 438090

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - esm.sh is a no-build content delivery network (CDN) for web development. Versions up to and including 137
 have an SSRF vulnerability (CWE-918) in esm.sh’s `/http(s)` fetch route. The service tries to block
 localhost/internal targets, but the validation is based on hostname string checks and can be bypassed
 using DNS alias domains. This allows an external requester to make the esm.sh server fetch internal
 localhost services. As of time of publication, no known patched versions exist. (CVE-2026-27730)

See Also

https://github.com/advisories/GHSA-p2v6-84h2-5x4r

Plugin Details

Severity: High

ID: 438090

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 3/3/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-27730

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/25/2026

Vulnerability Publication Date: 2/25/2026

Reference Information

CVE: CVE-2026-27730

cwe: CWE-918