CVE-2026-57193
Asterisk: LDAP Filter Injection in res_config_ldap via SIP Username (Unauthenticated Information Disclosure)
02 Description
Asterisk: LDAP Filter Injection in res_config_ldap via SIP Username (Unauthenticated Information Disclosure)
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.96% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 80.2% of scored records. A rank, not a probability.
- NVD base score
- 6.9 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS 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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-27.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-26 19:46Z2 DAYS AGO
- Last updated
- 2026-10-26 19:46Z2 DAYS AGO
- Reserved
- 2026-06-24
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.9)
- CNA CVSS 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
- Weaknesses
- CWE-943Improper Neutralization of Special Elements in Data Query LogicClass
- Data version
- 5.2
- Document digest
- 5ea97c9d135108b66069819c5fb120f9441a6ef6e509d43a77a7105aa27a3efe
05 Affected products
06 References
- github.comhttps://github.com/asterisk/asterisk/security/advisories/GHSA-r6c2-hwc2-j4mp
- github.comhttps://github.com/asterisk/asterisk/commit/04aa482212e43b292817444eb4de35499f4b1568
- github.comhttps://github.com/asterisk/asterisk/commit/14968f2f440ea0dd983caa4f477237a5224904dd
- github.comhttps://github.com/asterisk/asterisk/commit/23c01b6d359c5d85da725beea89e394a6c031c5d
- github.comhttps://github.com/asterisk/asterisk/commit/7e1ae09594a101950398cc6aff2dd2e5ab314884
- github.comhttps://github.com/asterisk/asterisk/commit/8170a6bfa75994e7617a8b9d7fe7a7140b70cbe2
- github.comhttps://github.com/asterisk/asterisk/commit/dd0c768d9e9678e4cb1ed95689a254a61452239b
- github.comhttps://github.com/asterisk/asterisk/commit/ef280572a034cac3994075298facb1999778ee0d
- github.comhttps://github.com/asterisk/asterisk/releases/tag/20.20.1
- github.comhttps://github.com/asterisk/asterisk/releases/tag/21.12.3
- github.comhttps://github.com/asterisk/asterisk/releases/tag/22.10.1
- github.comhttps://github.com/asterisk/asterisk/releases/tag/23.4.1
- github.comhttps://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11
- github.comhttps://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3
- github.comhttps://github.com/asterisk/asterisk/tree/24.0.0-pre1
07 Fixed in
Debian 14
- asterisk Fixed in 1:22.10.1+dfsg+~cs6.17.60671434-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- asterisk No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- asterisk No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- asterisk No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- asterisk No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- asterisk No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- asterisk No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- asterisk No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.