CVE-2026-49838

Katalog CVE

CVSS 5.9 · Medium EPSS 0,41%

Kerentanan Improper Validation of Array Index. Skor CVSS 3.1 5.9 (Medium) menurut github.com.

Deskripsi (NVD)

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.7.0, GoBGP accepts a zero-length AS_PATH during UPDATE decoding and later panics while validating that attribute for a confederation eBGP peer. The vulnerable path is in the BGP UPDATE validator: a malformed UPDATE that should be rejected as a malformed AS_PATH instead reaches an unchecked `p.Value[0]` access, allowing a configured confederation eBGP peer to trigger a denial of service. Version 4.7.0 patches the issue.

Rincian

Terbit di NVD

10 September 2026

Terakhir diubah

16 September 2026

Status NVD

Deferred

CVSS 3.1

5.9 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-129: Improper Validation of Array Index

EPSS (30 hari)

0,41% peluang dieksploitasi; lebih tinggi dari 33,6% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/osrg/gobgp/commit/4a319a6c25630fb3cdbda3e9ccfe56e702bdaaa0
• https://github.com/osrg/gobgp/security/advisories/GHSA-frrj-87jh-2772