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


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.33% (24th percentile)

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  • Snyk IDSNYK-RHEL8-OPENSHIFT4METALLBRHEL8-19757482
  • published13 Sept 2026
  • disclosed10 Sept 2026

Introduced: 10 Sep 2026

CVE-2026-49837  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 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:8 relevant fixed versions and status.

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Versions prior to 4.6.0 contain a BGP OPEN capability parsing issue where several concrete capability decoders may parse data from the full remaining capability buffer instead of the slice bounded by the declared capability length, CapLen. A malformed BGP OPEN message can cause bytes from a following capability to be interpreted as part of the current capability. The most security-relevant case is the 4-octet AS capability, where a capability with CapLen == 0 may cause the parser to read bytes from the following capability as the 4-octet AS value. This parsed value may later affect peer AS validation during BGP session establishment. Version 4.6.0 patches the issue.

CVSS Base Scores

version 3.1