CVE-2026-119336

{"id": "CVE-2026-119336", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-119336", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-30T21:21:13.368597Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "pi-hole", "product": "pi-hole", "versions": [{"status": "affected", "version": ">= 6.4.2, < 6.5"}]}]}], "published": "2026-10-30T20:17:08.297", "references": [{"url": "https://github.com/pi-hole/pi-hole/commit/85de82dd2b63bf71ecb936177dfb82421d9d2f25", "source": "security-advisories@github.com"}, {"url": "https://github.com/pi-hole/pi-hole/commit/c1062f43b0de1876321bafac58fba862406366cb", "source": "security-advisories@github.com"}, {"url": "https://github.com/pi-hole/pi-hole/commit/e05dc3f139206fd8d0e4a052dceefb9056533517", "source": "security-advisories@github.com"}, {"url": "https://github.com/pi-hole/pi-hole/pull/6719", "source": "security-advisories@github.com"}, {"url": "https://github.com/pi-hole/pi-hole/releases/tag/v6.5", "source": "security-advisories@github.com"}, {"url": "https://github.com/pi-hole/pi-hole/security/advisories/GHSA-xch2-4qxw-g5vj", "source": "security-advisories@github.com"}], "vulnStatus": "Received", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-59"}, {"lang": "en", "value": "CWE-61"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-10-30T23:17:09.687", "sourceIdentifier": "security-advisories@github.com"}