Double Free Affecting cilium-cli package, versions <0.19.2-r11


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.02% (5th percentile)

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  • Snyk IDSNYK-WOLFILATEST-CILIUMCLI-16639610
  • published11 May 2026
  • disclosed7 May 2026

Introduced: 7 May 2026

NewCVE-2026-33811  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade Wolfi cilium-cli to version 0.19.2-r11 or higher.

NVD Description

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

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.

CVSS Base Scores

version 3.1