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.
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://github.com/osrg/gobgp/releases/tag/v4.3.0 Patch, Release Notes
- https://github.com/osrg/gobgp/security/advisories/GHSA-8rxh-r2p6-7f2q Exploit, Vendor Advisory
- https://github.com/osrg/gobgp/security/advisories/GHSA-8rxh-r2p6-7f2q Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.5 · osrgNVD modified 2026-10-26 21:10
Affected (CPE criteria) 1
cpe:2.3:a:osrg:gobgp:*:*:*:*:*:*:*:*
References 3
- https://github.com/osrg/gobgp/releases/tag/v4.3.0 Patch, Release Notes
- https://github.com/osrg/gobgp/security/advisories/GHSA-8rxh-r2p6-7f2q Exploit, Vendor Advisory
- https://github.com/osrg/gobgp/security/advisories/GHSA-8rxh-r2p6-7f2q Exploit, Vendor Advisory