Bug 2495262

Summary:	CVE-2026-25681 complyctl: golang.org/x/net/html: Arbitrary code execution via Cross-Site Scripting [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Christopher Lusk <clusk>
Component:	complyctl	Assignee:	Marcus Burghardt <maburgha>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	45	CC:	go-sig, maburgha
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["2b04a8f8-04fb-4c07-acfa-18c6f346b87d"]}
Fixed In Version:	complyctl-1.0.0-1.fc44	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-09-09 04:49:35 UTC	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:	2480761

Description Christopher Lusk 2026-06-30 21:12:28 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.

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.

Comment 1 Aoife Moloney 2026-08-17 15:08:48 UTC

This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.

Comment 2 Marcus Burghardt 2026-09-02 08:31:33 UTC

This CVE (GO-2026-5029) affects golang.org/x/net versions < 0.55.0.
complyctl currently vendors golang.org/x/net v0.58.0, which includes the fix.

Upstream fix (Go project):
  https://go.dev/issue/79574
  https://go.dev/cl/781703

Fixed in complyctl via:
  Commit 659dea0efde7: fix: update Go dependencies to resolve security vulnerabilities
  PR https://github.com/complytime/complyctl/pull/603

govulncheck confirms zero reachable vulnerabilities at symbol level.

Comment 3 Fedora Update System 2026-09-02 08:44:46 UTC

FEDORA-2026-f33ade2ba6 (complyctl-1.0.0-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-f33ade2ba6

Comment 4 Fedora Update System 2026-09-03 01:38:01 UTC

FEDORA-2026-f33ade2ba6 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-f33ade2ba6`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-f33ade2ba6

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

Comment 5 Fedora Update System 2026-09-09 04:49:35 UTC

FEDORA-2026-f33ade2ba6 (complyctl-1.0.0-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.