MEDIUM6.8

GHSA-mfvv-mgf6-q25r

GoBGP crashes in the flowspec parser

Quick fix

GHSA-mfvv-mgf6-q25r — github.com/osrg/gobgp/v3: upgrade to the fixed version with the command below.

go get github.com/osrg/gobgp/v3@v3.35.0

Details

An issue was discovered in GoBGP before 3.35.0. An attacker can cause a crash in the pkg/packet/bgp/bgp.go flowspec parser by sending fewer than 20 bytes in a certain context.

Are you affected?

Enter the version of the package you're using.

Affected packages

Go/github.com/osrg/gobgp

Introduced in: 0

No fixed version published yet for github.com/osrg/gobgp (go modules). Pin to a known-safe version or switch to an alternative.

Go/github.com/osrg/gobgp/v3

Introduced in: 0Fixed in: 3.35.0

Fixgo get github.com/osrg/gobgp/v3@v3.35.0

References

https://nvd.nist.gov/vuln/detail/CVE-2025-43972[ADVISORY]
https://github.com/osrg/gobgp/commit/ca7383f450f7b296c5389feceef2467de5ab6e5a[WEB]
https://github.com/osrg/gobgp[PACKAGE]
https://github.com/osrg/gobgp/compare/v3.34.0...v3.35.0[WEB]