Bug 2453102 (CVE-2026-5124)

Summary:	CVE-2026-5124 github.com/osrg/gobgp: osrg GoBGP: Information disclosure via BGP Header Handler
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	kshier, stcannon, teagle, yguenane
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
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Doc Text:	A flaw was found in osrg GoBGP. A remote attacker could exploit an improper access control vulnerability in the BGPHeader.DecodeFromBytes function within the BGP Header Handler component. This could lead to information disclosure, potentially revealing sensitive data.	Story Points:	---
Clone Of:		Environment:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2453524
Bug Blocks:

Description OSIDB Bzimport 2026-03-30 17:02:27 UTC

A security vulnerability has been detected in osrg GoBGP up to 4.3.0. Affected is the function BGPHeader.DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP Header Handler. The manipulation leads to improper access controls. Remote exploitation of the attack is possible. The attack is considered to have high complexity. The exploitability is told to be difficult. The identifier of the patch is f0f24a2a901cbf159260698211ab15c583ced131. To fix this issue, it is recommended to deploy a patch.