CVE-2026-5124: Osrg Gobgp

Low severity, CVSS 3.7. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Osrg Gobgp: before 4.4.0 (fixed in 4.4.0)

Published 2026-03-30. Last modified 2026-06-17.