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CVE-2026-41643

HIGH CVSS: 7.5 Published: 2026-05-07 Modified: 2026-06-17

Description

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. This issue has been patched in version 4.3.0.

Affected Platforms

Osrg Gobgp

Weakness Type

CWE-129

References