Vulnerability in Pi-Hole
CVE-2026-119334
Pi-hole is a DNS sinkhole that protects devices from unwanted content without installing any client-side software. Prior to 6.5, gravity.sh checks file:// adlist readability with sudo -u pihole test -r but then allows curl, sometimes running as root, to normalize URL dot segments and open a different file. A pihole-readable decoy can therefore pass the check while curl reads a root-only target, and /proc/self paths can similarly resolve against different processes. Exploitation requires an administrator who can add adlists and can place a symlink and decoy on the filesystem. This issue is fixed in version 6.5.
Published .
CVSS v3 metric
CVSS v3 base score 2.2 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Pi-Hole — versions < 6.5
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-119334?
- CVE-2026-119334 is a low-severity vulnerability in Pi-Hole, classified under Improper Link Resolution Before File Access. CVSS score: 2.2/10. Published 2026-10-30.
- How severe is CVE-2026-119334?
- Low severity. CVSS v3 base score is 2.2 out of 10.