Denial of Service Vulnerability in osrg GoBGP Affecting SRv6 L3 Service
CVE-2026-7734

6.9MEDIUM

Key Information:

Vendor

Osrg

Status
Gobgp
Vendor
CVE Published:
4 May 2026

What is CVE-2026-7734?

A denial of service vulnerability has been identified in osrg GoBGP versions up to 4.3.0, specifically within the SRv6 L3 Service's method SRv6L3ServiceAttribute.DecodeFromBytes. An attacker can exploit this vulnerability by manipulating the argument data, potentially leading to service disruptions. This vulnerability can be triggered remotely, highlighting the importance of upgrading to version 4.4.0, which addresses this issue. The corresponding patch is identified by commit f9f7b55ec258e514be0264871fa645a2c3edad11.

Affected Version(s)

GoBGP 4.0

GoBGP 4.1

GoBGP 4.2

References

https://vuldb.com/vuln/360909
vdb-entrytechnical-description
https://vuldb.com/vuln/360909/cti
signaturepermissions-required
https://vuldb.com/submit/807581
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

rensiru (VulDB User)
.