Bug 2521878

Summary:	CVE-2026-68517 glances: Glances: Information disclosure via REST API CORS bypass [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Vladimir Vasilev <vvasilev>
Component:	glances	Assignee:	Ali Erdinc Koroglu <ali.koroglu>
Status:	NEW ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	ali.koroglu, jonathan
Target Milestone:	---	Keywords:	Security, SecurityTracking
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Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["4a0179f9-5339-4ab8-bbff-2a721c10b5cc"]}
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2517508

Description Vladimir Vasilev 2026-08-24 13:23:15 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.

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.6, the cors_origins guard in glances/outputs/glances_restful_api.py uses exact list equality instead of wildcard membership, allowing a multi-origin list containing the wildcard to retain cors_credentials and expose authenticated REST API data to an untrusted website visited by a previously authenticated user. This issue is fixed in 4.5.6.