CVE-2026-5124

A security vulnerability has been detected in osrg GoBGP up to 4.3.0. Affected is the function BGPHeader.DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP Header Handler. The manipulation leads to improper access controls. Remote exploitation of the attack is possible. The...

CVE-2026-5124

The CVE-2026-5124 entry concerns osrg GoBGP up to 4.3.0. Affected is BGPHeader.DecodeFromBytes in pkg/packet/bgp/bgp.go (BGP Header Handler). The issue is improper access controls with remote exploitation possible, reported as high complexity and low ease of exploitation. A patch is identified by...

CVE-2026-5124 osrg GoBGP BGP Header bgp.go BGPHeader.DecodeFromBytes access control

A security vulnerability has been detected in osrg GoBGP up to 4.3.0. Affected is the function BGPHeader.DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP Header Handler. The manipulation leads to improper access controls. Remote exploitation of the attack is possible. The...

CVE-2026-5124 osrg GoBGP BGP Header bgp.go BGPHeader.DecodeFromBytes access control

A security vulnerability has been detected in osrg GoBGP up to 4.3.0. Affected is the function BGPHeader.DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP Header Handler. The manipulation leads to improper access controls. Remote exploitation of the attack is possible. The...

CVE-2026-5122

A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be...

UBUNTU-CVE-2026-5122

A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be...

CVE-2026-5123 osrg GoBGP bgp.go DecodeFromBytes off-by-one

A weakness has been identified in osrg GoBGP up to 4.3.0. This impacts the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go. Executing a manipulation of the argument data1 can lead to off-by-one. The attack may be launched remotely. Attacks of this nature are highly complex. The...

CVE-2026-5123 osrg GoBGP bgp.go DecodeFromBytes off-by-one

A weakness has been identified in osrg GoBGP up to 4.3.0. This impacts the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go. Executing a manipulation of the argument data1 can lead to off-by-one. The attack may be launched remotely. Attacks of this nature are highly complex. The...

CVE-2026-5123

A weakness has been identified in osrg GoBGP up to 4.3.0. This impacts the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go. Executing a manipulation of the argument data1 can lead to off-by-one. The attack may be launched remotely. Attacks of this nature are highly complex. The...

CVE-2026-5123

Summary: CVE-2026-5123 affects osrg GoBGP up to version 4.3.0. It concerns the function DecodeFromBytes in pkg/packet/bgp/bgp.go, where manipulating the data[1] argument can trigger an off-by-one condition. The issue potentially allows a remote attacker, with a highly complex attack surface, to i...

CVE-2026-5122 osrg GoBGP BGP OPEN Message bgp.go DecodeFromBytes access control

A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be...

CVE-2026-5122

A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be...

CVE-2026-5122

The CVE affects osrg GoBGP ≤ 4.3.0, specifically the BGP OPEN Message Handler in pkg/packet/bgp/bgp.go DecodeFromBytes. Manipulating the domainNameLen argument results in improper access controls, potentially enabling remote exploitation. The attack is described with a high complexity requirement...

CVE-2026-5122 osrg GoBGP BGP OPEN Message bgp.go DecodeFromBytes access control

A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be...

CVE-2026-5122 osrg GoBGP BGP OPEN Message bgp.go DecodeFromBytes access control

A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be...

CVE-2026-5122

A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be...

GoBGP 安全漏洞

GoBGP is an open-source implementation of the Border Gateway Protocol BGP developed by osrg. Versions of osrg GoBGP prior to 4.3.0 contain security vulnerabilities. These vulnerabilities stem from incorrect handling of the parameter data1 in the file pkg/packet/bgp/bgp.go, which may lead to a...

GoBGP 访问控制错误漏洞

GoBGP is an open-source implementation of the Border Gateway Protocol BGP developed by osrg. Versions of GoBGP prior to 4.3.0 contained a access control vulnerability, which stemmed from incorrect operations on the function BGPHeader.DecodeFromBytes in the file pkg/packet/bgp/bgp.go. This...

CVE-2026-30405

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

Improper Check for Unusual or Exceptional Conditions

Overview Affected versions of this package are vulnerable to Improper Check for Unusual or Exceptional Conditions via the recvMessageloop validation path in fsm.go. An attacker can crash the GoBGP process by sending a BGP UPDATE whose NEXTHOP attribute reports a length shorter than 4 while the...