Bug 2561827

Summary:	CVE-2026-113650 golang-github-apache-beam-2: sanitize-html: Denial of Service via unbounded recursion in iframe tag processing [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Vipul Nair <vinair>
Component:	golang-github-apache-beam-2	Assignee:	Orphan Owner <extras-orphan>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	extras-orphan, go-sig
Target Milestone:	---	Keywords:	Security, SecurityTracking
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Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["6a05555e-b480-493e-ac6a-5a89a2d302a7"]}
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2556329

Description Vipul Nair 2026-10-27 11:31:20 UTC

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

ApostropheCMS is an open-source Node.js content management system. In sanitize-html 2.18.0, when an <iframe> is not allowed and disallowedTagsMode is 'discard' (the defaults), its raw-text content is re-sanitized by a recursive call to sanitizeHtml(text, options). The recursion has no bound and starts each nested call with a fresh state. This vulnerability is fixed in 2.18.1.