GHSA-hj4w-qr9j-c4cf

GoBGP has an Integer Underflow Issue

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-7736

Packages

Ecosystem	Package	Affected	Fixed in
Go	github.com/osrg/gobgp/v4	< 4.4.0	4.4.0

Details

As written in the advisory (Markdown source, shown as plain text).

A vulnerability was determined in osrg GoBGP up to 4.3.0. Affected by this vulnerability is the function parseRibEntry of the file pkg/packet/mrt/mrt.go. Executing a manipulation can lead to integer underflow. It is possible to launch the attack remotely. Upgrading to version 4.4.0 addresses this issue. This patch is called 76d911046344a3923cbe573364197aa081944592. It is suggested to upgrade the affected component.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2026-7736 advisory
https://github.com/osrg/gobgp/commit/76d911046344a3923cbe573364197aa081944592 web
https://github.com/osrg/gobgp package
https://github.com/osrg/gobgp/releases/tag/v4.4.0 web
https://vuldb.com/submit/807604 web
https://vuldb.com/vuln/360911 web
https://vuldb.com/vuln/360911/cti web