{"schemaVersion":3,"id":"CVE-2026-42285","aliases":["UBUNTU-CVE-2026-42285","DEBIAN-CVE-2026-42285","GHSA-p3w2-64xm-833j","GO-2026-5525"],"status":"published","duplicateOf":null,"title":null,"description":"GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. In version 4.4.0, an unauthenticated remote BGP peer can trigger a fatal panic in GoBGP by sending a specially crafted BGP UPDATE message. When the server receives a message with inconsistent attribute lengths, it improperly handles the internal state transition to a \"withdraw\" action, leading to a nil pointer dereference in the AdjRib.Update function. This causes the entire GoBGP process to crash, resulting in a complete loss of service availability. 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