CVE-2026-30405: GoBGP vulnerable to a denial of service via the NEXT_HOP path attribute

March 16, 2026 (updated March 18, 2026)

An issue in GoBGP gobgpd v.4.2.0 allows a remote attacker to cause a denial of service via the NEXT_HOP path attribute.

References

github.com/advisories/GHSA-4p9m-8gc4-rw2h
github.com/osrg/gobgp
github.com/osrg/gobgp/commit/583080a7258e22cc884162e15b078771aa2c2c80
github.com/osrg/gobgp/issues/3305
nvd.nist.gov/vuln/detail/CVE-2026-30405

Code Behaviors & Features

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