Unchecked Input for Loop Condition Affecting containernetworking-plugins package, versions <1:1.4.0-7.rhaos4.12.el8


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.78% (55th percentile)

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  • Snyk IDSNYK-RHEL8-CONTAINERNETWORKINGPLUGINS-19755662
  • published13 Sept 2026
  • disclosed7 May 2026

Introduced: 7 May 2026

CVE-2026-39820  (opens in a new tab)
CWE-606  (opens in a new tab)

How to fix?

Upgrade RHEL:8 containernetworking-plugins to version 1:1.4.0-7.rhaos4.12.el8 or higher.
This issue was patched in RHSA-2026:59830.

NVD Description

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

Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations.

CVSS Base Scores

version 3.1