Out-of-bounds Read Affecting openshift4/metallb-rhel8 package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.41% (33rd percentile)

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  • Snyk IDSNYK-RHEL9-OPENSHIFT4METALLBRHEL8-19706783
  • published13 Sept 2026
  • disclosed10 Sept 2026

Introduced: 10 Sep 2026

CVE-2026-49838  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 openshift4/metallb-rhel8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openshift4/metallb-rhel8 package and not the openshift4/metallb-rhel8 package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1