CVE-2026-57193
Severity not reportedAsterisk is an open source private branch exchange and telephony toolkit.
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.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/asterisk/asterisk/commit/04aa482212e43b292817444eb4de35499f4b1568 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/14968f2f440ea0dd983caa4f477237a5224904dd security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/23c01b6d359c5d85da725beea89e394a6c031c5d security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/7e1ae09594a101950398cc6aff2dd2e5ab314884 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/8170a6bfa75994e7617a8b9d7fe7a7140b70cbe2 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/dd0c768d9e9678e4cb1ed95689a254a61452239b security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/ef280572a034cac3994075298facb1999778ee0d security-advisories@github.com
- https://github.com/asterisk/asterisk/releases/tag/20.20.1 security-advisories@github.com
- https://github.com/asterisk/asterisk/releases/tag/21.12.3 security-advisories@github.com
- https://github.com/asterisk/asterisk/releases/tag/22.10.1 security-advisories@github.com
- https://github.com/asterisk/asterisk/releases/tag/23.4.1 security-advisories@github.com
- https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11 security-advisories@github.com
- https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3 security-advisories@github.com
- https://github.com/asterisk/asterisk/security/advisories/GHSA-r6c2-hwc2-j4mp security-advisories@github.com
- https://github.com/asterisk/asterisk/tree/24.0.0-pre1 security-advisories@github.com