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GHSA-mfvv-mgf6-q25r

GoBGP crashes in the flowspec parser

Source: GitHub Advisory Database (reviewed) Moderate CVE-2025-43972

Packages

EcosystemPackageAffectedFixed in
Go github.com/osrg/gobgp < 3.35.0 no fix listed
Go github.com/osrg/gobgp/v3 < 3.35.0 3.35.0

Details

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

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.

References

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