---
id: CVE-2026-7737
aliases:
  - GHSA-w88c-9vg8-cmq8
  - GO-2026-5699
title: >-
  GoBGP has Improper Restriction of Operations within the Bounds of a Memory
  Buffer
summary: >-
  GoBGP has Improper Restriction of Operations within the Bounds of a Memory
  Buffer
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
vendor: osrg
product: github.com/osrg/gobgp
ecosystem: go
affected:
  - github.com/osrg/gobgp < 4.4.0
patched:
  - github.com/osrg/gobgp 4.4.0
published: '2026-05-04'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-w88c-9vg8-cmq8'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-7737'
  - url: >-
      https://github.com/osrg/gobgp/commit/bc77597d42335c78464bc8e15a471d887bbdf260
  - url: 'https://github.com/osrg/gobgp'
  - url: 'https://github.com/osrg/gobgp/releases/tag/v4.4.0'
  - url: 'https://vuldb.com/submit/807605'
  - url: 'https://vuldb.com/vuln/360912'
  - url: 'https://vuldb.com/vuln/360912/cti'
tags:
  - osv
  - go
epss: 0.00897
epssPercentile: 0.57816
ingestedAt: '2026-07-09T18:56:36.961Z'
---

## Overview

A vulnerability was identified in osrg GoBGP up to 4.3.0. Affected by this issue is the function BMPPeerUpNotification.ParseBody/BMPStatisticsReport.ParseBody of the file pkg/packet/bmp/bmp.go of the component BMP Parser. The manipulation leads to out-of-bounds read. The attack can be initiated remotely. Upgrading to version 4.4.0 can resolve this issue. The identifier of the patch is bc77597d42335c78464bc8e15a471d887bbdf260. Upgrading the affected component is recommended.

## Affected packages

- `github.com/osrg/gobgp < 4.4.0`

## Remediation

Upgrade to a patched release:

- `github.com/osrg/gobgp 4.4.0`