CVE-2026-7734: GoBGP Improper Resource Shutdown or Release Vulnerability

github.com/osrg/gobgp/v4 Updated 08 Jul 2026

Summary

07/07/2026

Disclosed on

CVE-2026-7734

CVE

Yes i

Fix available

Moderate

Severity

5.3

CVSS Score

CVE-2026-7734: GoBGP has an Improper Resource Shutdown or Release in github.com/osrg/gobgp. Affects github.com/osrg/gobgp/v4 versions < 4.4.0. Fixed in 4.4.0. How to fix ↓

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Background

GoBGP is an open-source Border Gateway Protocol (BGP) implementation written in Go. It is designed to provide a flexible and efficient way to manage BGP routing, supporting various features such as route reflection and multipath routing. The package is widely used in networking applications and services, making it crucial for maintaining the stability and security of network communications. However, it is susceptible to vulnerabilities that can lead to improper resource management, potentially affecting performance and reliability.

Vulnerability Detail

The vulnerability identified as CVE-2026-7734 in GoBGP relates to an improper resource shutdown or release. This issue arises when the application fails to adequately manage resources during shutdown processes, which can lead to memory leaks or other resource exhaustion problems. If exploited, this vulnerability could allow an attacker to disrupt the normal operation of the BGP service, potentially leading to network instability or denial of service. The affected functions include BGPUpdate.DecodeFromBytes, ParseBGPBody, and others within the package.

How To Fix

Latest published version: v4.10.0 as of 22 Oct 2026

go get github.com/osrg/gobgp/v4@v4.10.0

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

4.4.0

This is the first release that contains the fix.

go get github.com/osrg/gobgp/v4@v4.4.0

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Workaround

Currently, there are no specific workarounds mentioned for this vulnerability. However, ensuring that your application is regularly updated and monitored can help mitigate potential risks.

Conclusion

The CVE-2026-7734 vulnerability in GoBGP highlights the importance of proper resource management in network applications. Users are encouraged to update to version 4.4.0 or later to mitigate risks associated with this vulnerability. Regular monitoring and updates are essential for maintaining application security.

See every vulnerability recorded for github.com/osrg/gobgp/v4 →