Bug 2496542

Summary:	CVE-2026-44294 qt5-qtwebengine: protobufjs: Denial of Service due to unescaped control characters in field names [epel-all]
Product:	[Fedora] Fedora EPEL	Reporter:	Matteo Signorini <msignori>
Component:	qt5-qtwebengine	Assignee:	Jan Grulich <jgrulich>
Status:	NEW ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	epel10	CC:	jgrulich, kde-sig, kevin
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["e8c095fd-cfd2-4157-911a-cde73b0cab35"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
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Regression:	---	Mount Type:	---
Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2477106

Description Matteo Signorini 2026-07-02 13:37:44 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.

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated JavaScript property accessors from schema-controlled field and oneof names. Certain control characters in field names were not escaped before being embedded into generated function bodies. A crafted schema or JSON descriptor could therefore cause generated encode, decode, verify, or conversion functions to fail during compilation. This vulnerability is fixed in 7.5.6 and 8.0.2.