Bug 2561814

Summary:	CVE-2026-113650 prometheus: sanitize-html: Denial of Service via unbounded recursion in iframe tag processing [epel-all]
Product:	[Fedora] Fedora EPEL	Reporter:	Vipul Nair <vinair>
Component:	prometheus	Assignee:	Mikel Olasagasti Uranga <mikel>
Status:	ON_QA ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	epel10	CC:	go-sig, mikel
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["6a05555e-b480-493e-ac6a-5a89a2d302a7"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
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 11:28:33 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.

Comment 1 Fedora Update System 2026-11-04 22:36:15 UTC

FEDORA-EPEL-2026-4439b82acf (prometheus-3.15.1-1.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-4439b82acf

Comment 2 Fedora Update System 2026-11-04 22:37:03 UTC

FEDORA-EPEL-2026-ef230b0ae2 (prometheus-3.15.1-1.el10_3) has been submitted as an update to Fedora EPEL 10.3.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-ef230b0ae2

Comment 3 Fedora Update System 2026-11-04 22:37:04 UTC

FEDORA-EPEL-2026-57ccfa542a (prometheus-3.15.1-1.el10_4) has been submitted as an update to Fedora EPEL 10.4.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-57ccfa542a

Comment 4 Fedora Update System 2026-11-05 02:49:30 UTC

FEDORA-EPEL-2026-57ccfa542a has been pushed to the Fedora EPEL 10.4 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-57ccfa542a

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-11-05 02:55:58 UTC

FEDORA-EPEL-2026-ef230b0ae2 has been pushed to the Fedora EPEL 10.3 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-ef230b0ae2

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2026-11-05 08:59:02 UTC

FEDORA-EPEL-2026-607a0f126b (prometheus-3.15.1-1.el10_2) has been submitted as an update to Fedora EPEL 10.2.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-607a0f126b

Comment 7 Fedora Update System 2026-11-05 15:35:11 UTC

FEDORA-EPEL-2026-4439b82acf has been pushed to the Fedora EPEL 9 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-4439b82acf

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 8 Fedora Update System 2026-11-06 02:44:56 UTC

FEDORA-EPEL-2026-607a0f126b has been pushed to the Fedora EPEL 10.2 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-607a0f126b

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.