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Vulnerability details

8.6/10
CVSS 3.1
CVE-2026-118660
in_triage Published 2026-10-28 Updated 2026-10-29
NVD MITRE OpenCVE
Vulnerability Data from Dependency-Track
Affected versions
Score
8.6 CVSS 3.1 NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Description
Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. Prior to 21.0.0, Happy DOM loads iframe src URLs and link rel="stylesheet" href URLs by default while parsing untrusted HTML on the server because disableIframePageLoading and disableCSSFileLoading default to false. An attacker who controls parsed HTML can therefore cause server-side requests to arbitrary internal or cloud endpoints without an application opt-in and may expose confidential responses or credentials returned by those endpoints. This issue is fixed in version 21.0.0.
Same vulnerability as
GHSA-c8p4-j97h-3vg8 in_triage according to EUVD-2026-112467
Analysis Read only
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