{"id":"CVE-2026-57200","title":"Asterisk: ARI REST-over-WebSocket read-only bypass allows arbitrary module path load and conditional RCE","summary":"Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 22.8-cert3, an authenticated attacker with read-only permissions for the `Asterisk REST …","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-22","CWE-863"],"vendor":"asterisk","product":"asterisk","affected":["asterisk < 20.20.1","asterisk >= 21.0.0-pre1, < 21.12.3","asterisk >= 22.0.0-pre1, < 22.10.1","asterisk >= 23.0.0-pre1, < 23.4.1","certified-asterisk >= 22.8-cert1-pre1, < 22.8-cert3"],"published":"2026-10-27","updated":"2026-10-27","sourceUpdated":"2026-10-27T21:13:03.777Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-57200","references":[{"url":"https://github.com/asterisk/asterisk/security/advisories/GHSA-wcvv-g26m-wx5c","label":"https://github.com/asterisk/asterisk/security/advisories/GHSA-wcvv-g26m-wx5c"},{"url":"https://github.com/asterisk/asterisk/commit/051d29a0d35559e9165bab346de9422e25415533","label":"https://github.com/asterisk/asterisk/commit/051d29a0d35559e9165bab346de9422e25415533"},{"url":"https://github.com/asterisk/asterisk/commit/205c301a0a0b0d013d4ebdf12856ebbc30405350","label":"https://github.com/asterisk/asterisk/commit/205c301a0a0b0d013d4ebdf12856ebbc30405350"},{"url":"https://github.com/asterisk/asterisk/commit/762b4c9c39b28fa5564112b0f484012298469a6c","label":"https://github.com/asterisk/asterisk/commit/762b4c9c39b28fa5564112b0f484012298469a6c"},{"url":"https://github.com/asterisk/asterisk/commit/87641e9b2cd62c998c5283400ba77b61b5b07dd4","label":"https://github.com/asterisk/asterisk/commit/87641e9b2cd62c998c5283400ba77b61b5b07dd4"},{"url":"https://github.com/asterisk/asterisk/commit/9d198a7d16ccba51507dfea6c1ecc511e89d698a","label":"https://github.com/asterisk/asterisk/commit/9d198a7d16ccba51507dfea6c1ecc511e89d698a"},{"url":"https://github.com/asterisk/asterisk/commit/c10cdbce072a708060cd38a89d6850808fe6bf46","label":"https://github.com/asterisk/asterisk/commit/c10cdbce072a708060cd38a89d6850808fe6bf46"},{"url":"https://github.com/asterisk/asterisk/releases/tag/20.20.1","label":"https://github.com/asterisk/asterisk/releases/tag/20.20.1"},{"url":"https://github.com/asterisk/asterisk/releases/tag/21.12.3","label":"https://github.com/asterisk/asterisk/releases/tag/21.12.3"},{"url":"https://github.com/asterisk/asterisk/releases/tag/22.10.1","label":"https://github.com/asterisk/asterisk/releases/tag/22.10.1"},{"url":"https://github.com/asterisk/asterisk/releases/tag/23.4.1","label":"https://github.com/asterisk/asterisk/releases/tag/23.4.1"},{"url":"https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3","label":"https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3"},{"url":"https://github.com/asterisk/asterisk/tree/24.0.0-pre1","label":"https://github.com/asterisk/asterisk/tree/24.0.0-pre1"}],"tags":["cve.org"],"ingestedAt":"2026-10-27T21:58:08.881Z","slug":"CVE-2026-57200","body":"## Overview\n\nAsterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 22.8-cert3, an authenticated attacker with read-only permissions for the `Asterisk REST Interface (ARI)` may, under certain conditions, execute write operations through `REST-over-WebSocket`. The authorization bypass permits `arbitrary module path` loading and conditional remote code execution. The Asterisk HTTP web server must be enabled and reachable, and the attacker must already have valid `read-only ARI credentials`. HTTP is disabled by default and binds only to 127.0.0.1 by default even when enabled. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 22.8-cert3.\n\n## Affected\n\n- `asterisk < 20.20.1`\n- `asterisk >= 21.0.0-pre1, < 21.12.3`\n- `asterisk >= 22.0.0-pre1, < 22.10.1`\n- `asterisk >= 23.0.0-pre1, < 23.4.1`\n- `certified-asterisk >= 22.8-cert1-pre1, < 22.8-cert3`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}