CVE-2026-119336

The record

Pi-hole is a DNS sinkhole that protects devices from unwanted content without installing any client-side software. From 6.4.2 until 6.5, the root-run advanced/Scripts/updatecheck.sh cron job applies truncate -s 0 and chmod 644 to /etc/pihole/versions while following symbolic links in a directory owned by the pihole user. An attacker executing as pihole can replace that path with a symlink so the scheduled root operations truncate or create an arbitrary root-owned file, or race the operations so chmod makes a sensitive target world-readable without truncating it. This issue is fixed in version 6.5.

Affected packages

Related vulnerabilities

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• CVE-2026-119704 Bastille through 1.4.4 contains a symlink following vulnerability in the cp.sh, rcp.sh… CWE-59
• CVE-2026-119291 Zuke is a code-first, strongly typed build automation system for Deno. CWE-59
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• CVE-2026-119364 ProFTPD through 1.3.9e and 1.3.10rc1 through 1.3.10rc4 contains a link-following… CWE-59
• CVE-2026-119168 HashiCorp Nomad and Nomad Enterprise are vulnerable to symlink following during… CWE-59
• CVE-2026-107347 HashiCorp Nomad and Nomad Enterprise are vulnerable to symlink following during dispatch… CWE-59