Creation of Immutable Text Using String Concatenation Affecting slirp4netns package, versions <0:1.2.3-1.module+el8.10.0+24790+ef71b018


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.8% (53rd percentile)

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  • Snyk IDSNYK-CENTOS8-SLIRP4NETNS-19742020
  • published13 Sept 2026
  • disclosed7 May 2026

Introduced: 7 May 2026

CVE-2026-42499  (opens in a new tab)
CWE-1046  (opens in a new tab)

How to fix?

Upgrade Centos:8 slirp4netns to version 0:1.2.3-1.module+el8.10.0+24790+ef71b018 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream slirp4netns package and not the slirp4netns package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.

CVSS Base Scores

version 3.1