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.
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History
Fri, 30 Oct 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Pi-hole: file:// adlist read check and curl can resolve different files | |
| Weaknesses | CWE-59 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-10-30T20:01:59.115Z
Reserved: 2026-10-29T20:44:30.285Z
Link: CVE-2026-119334
No data.
Status : Received
Published: 2026-10-30T20:17:07.967
Modified: 2026-10-30T20:17:07.967
Link: CVE-2026-119334
No data.
OpenCVE Enrichment
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Weaknesses