CVE-2026-41642

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. In version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP due to a nil pointer dereference. When a malformed BGP UPDATE message contains an unrecognized Path Attribute marked as "Well-known," the daemon fails to interrupt the message handling flow. This results in an illegal memory access and a full process crash (panic). This issue has been patched in version 4.4.0.
Configurations

Configuration 1 (hide)

cpe:2.3:a:osrg:gobgp:4.3.0:*:*:*:*:*:*:*

History

07 May 2026, 19:46

Type Values Removed Values Added
CPE cpe:2.3:a:osrg:gobgp:4.3.0:*:*:*:*:*:*:*
First Time Osrg gobgp
Osrg
References () https://github.com/osrg/gobgp/releases/tag/v4.4.0 - () https://github.com/osrg/gobgp/releases/tag/v4.4.0 - Patch, Product
References () https://github.com/osrg/gobgp/security/advisories/GHSA-7235-89m6-f4px - () https://github.com/osrg/gobgp/security/advisories/GHSA-7235-89m6-f4px - Exploit, Vendor Advisory

07 May 2026, 15:06

Type Values Removed Values Added
New CVE

Information

Published : 2026-05-07 12:16

Updated : 2026-05-07 19:46


NVD link : CVE-2026-41642

Mitre link : CVE-2026-41642

CVE.ORG link : CVE-2026-41642


JSON object : View

Products Affected

osrg

  • gobgp
CWE
CWE-476

NULL Pointer Dereference