{"id":"CVE-2026-57193","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-57193","generatedAt":"2026-10-28T01:48:09.477Z","title":"Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, the LDAP realtime driver `res_config_ldap` may permit `LDAP filter injection` through a `SIP username`, allowing an unauthenticated attacker to make…","description":"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 20.7-cert11, 22.8-cert3, the LDAP realtime driver `res_config_ldap` may permit `LDAP filter injection` through a `SIP username`, allowing an unauthenticated attacker to make arbitrary LDAP queries using carefully crafted SIP packets and disclose information. The `res_config_ldap` module must be loaded and configured to access an LDAP server, which is not the default. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.","published":"2026-10-26T20:17:57.000Z","lastModified":"2026-10-27T15:08:51.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":6.9,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-943"],"affected":[],"epss":null,"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and no EPSS score yet. Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-26T20:17:57.000Z","detail":{"score":"6.9","severity":"MEDIUM","publishedAt":"2026-10-26T20:17:56.877Z"},"summary":"New CVE, medium severity (CVSS 6.9)."}],"references":[{"url":"https://github.com/asterisk/asterisk/commit/04aa482212e43b292817444eb4de35499f4b1568","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/14968f2f440ea0dd983caa4f477237a5224904dd","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/23c01b6d359c5d85da725beea89e394a6c031c5d","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/7e1ae09594a101950398cc6aff2dd2e5ab314884","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/8170a6bfa75994e7617a8b9d7fe7a7140b70cbe2","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/dd0c768d9e9678e4cb1ed95689a254a61452239b","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/ef280572a034cac3994075298facb1999778ee0d","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/releases/tag/20.20.1","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/releases/tag/21.12.3","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/releases/tag/22.10.1","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/releases/tag/23.4.1","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/security/advisories/GHSA-r6c2-hwc2-j4mp","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/tree/24.0.0-pre1","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-57193","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}