{"id":"CVE-2026-35491","state":"PUBLISHED","title":"Pi-hole FTL: CLI API sessions can import Teleporter archives and modify configuration","description":"FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, Pi-hole FTL supports a CLI password feature (webserver.api.cli_pw) that creates “CLI” API sessions intended to be read-only for configuration changes. While /api/config correctly blocks CLI sessions from mutating configuration, /api/teleporter allowed Teleporter imports for CLI sessions, enabling a CLI-scoped session to overwrite configuration via a Teleporter archive (authorization bypass). This vulnerability is fixed in 6.6.","publishedAt":"2026-04-07T15:00:11.079Z","updatedAt":"2026-04-07T17:52:48.043Z","severity":{"score":6.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["pi-hole FTL"],"affected":[{"vendor":"pi-hole","product":"FTL","versions":[{"version":">= 6.0, < 6.6","status":"affected"}]}],"references":["https://github.com/pi-hole/FTL/security/advisories/GHSA-r7g8-3fj7-m5qq"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/35xxx/CVE-2026-35491.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-35491","state":"PUBLISHED","datePublished":"2026-04-07T15:00:11.079Z","dateUpdated":"2026-04-07T17:52:48.043Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-02T20:49:44.454Z"},"containers":{"cna":{"title":"Pi-hole FTL: CLI API sessions can import Teleporter archives and modify configuration","descriptions":[{"lang":"en","value":"FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, Pi-hole FTL supports a CLI password feature (webserver.api.cli_pw) that creates “CLI” API sessions intended to be read-only for configuration changes. While /api/config correctly blocks CLI sessions from mutating configuration, /api/teleporter allowed Teleporter imports for CLI sessions, enabling a CLI-scoped session to overwrite configuration via a Teleporter archive (authorization bypass). This vulnerability is fixed in 6.6."}],"affected":[{"vendor":"pi-hole","product":"FTL","versions":[{"version":">= 6.0, < 6.6","status":"affected"}]}],"references":[{"url":"https://github.com/pi-hole/FTL/security/advisories/GHSA-r7g8-3fj7-m5qq","name":"https://github.com/pi-hole/FTL/security/advisories/GHSA-r7g8-3fj7-m5qq","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-07T15:00:11.079Z"},"source":{"advisory":"GHSA-r7g8-3fj7-m5qq","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-07T17:52:41.306420Z","id":"CVE-2026-35491","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-07T17:52:48.043Z"}}]}}}