Bug 2516137

Summary:	CVE-2026-72552 dub: Dub: Server-Side Request Forgery allows information disclosure and internal network scanning [epel-all]
Product:	[Fedora] Fedora EPEL	Reporter:	Joel Chamberlain <jochambe>
Component:	dub	Assignee:	Davide Cavalca <davide>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	epel10	CC:	davide
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["9572f2d5-8232-4daf-8dbd-a5dcc83c2638"]}
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Doc Text:		Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2513873

Description Joel Chamberlain 2026-08-14 19:37:49 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.

A server-side request forgery vulnerability in Dub as of 2026-07-10 allows unauthenticated remote attackers to make the server issue HTTP requests to arbitrary internal or external hosts via the metatags edge endpoint. The endpoint fetches any caller-supplied URL without applying a denylist or requiring authentication. An attacker can use this to scan internal services or exfiltrate data from cloud metadata endpoints.