ID
VAR-202602-1715
CVE
CVE-2026-23739
TITLE
Sangoma of Asterisk In multiple products such as XML External entity vulnerabilities
Trust: 0.8
DESCRIPTION
Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, the ast_xml_open() function in xml.c parses XML documents using libxml with unsafe parsing options that enable entity expansion and XInclude processing. Specifically, it invokes xmlReadFile() with the XML_PARSE_NOENT flag and later processes XIncludes via xmlXIncludeProcess().If any untrusted or user-supplied XML file is passed to this function, it can allow an attacker to trigger XML External Entity (XXE) or XInclude-based local file disclosure, potentially exposing sensitive files from the host system. This can also be triggered in other cases in which the user is able to supply input in xml format that triggers the asterisk process to parse it. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2. 20.7-cert9 , 20.18.2 , 21.12.1 , 22.8.2 ,and 23.2.2 Fixed inAll information handled by the software may be leaked to the outside. In addition, information handled by the software will not be rewritten. Furthermore, the software will not stop. Furthermore, attacks exploiting this vulnerability will not affect other software
Trust: 1.62
AFFECTED PRODUCTS
| vendor: | sangoma | model: | asterisk | scope: | lt | version: | 23.2.2 | Trust: 1.0 |
| vendor: | sangoma | model: | certified asterisk | scope: | lte | version: | 18.9 | Trust: 1.0 |
| vendor: | sangoma | model: | asterisk | scope: | lt | version: | 21.12.1 | Trust: 1.0 |
| vendor: | sangoma | model: | asterisk | scope: | gte | version: | 21.0.0 | Trust: 1.0 |
| vendor: | sangoma | model: | asterisk | scope: | lt | version: | 20.18.2 | Trust: 1.0 |
| vendor: | sangoma | model: | asterisk | scope: | gte | version: | 23.0.0 | Trust: 1.0 |
| vendor: | sangoma | model: | asterisk | scope: | lt | version: | 22.8.2 | Trust: 1.0 |
| vendor: | sangoma | model: | certified asterisk | scope: | eq | version: | 20.7 | Trust: 1.0 |
| vendor: | sangoma | model: | asterisk | scope: | gte | version: | 22.0.0 | Trust: 1.0 |
| vendor: | sangoma | model: | certified asterisk | scope: | - | version: | - | Trust: 0.8 |
| vendor: | sangoma | model: | asterisk | scope: | - | version: | - | Trust: 0.8 |
CVSS
SEVERITY | CVSSV2 | CVSSV3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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PROBLEMTYPE DATA
| problemtype: | CWE-611 | Trust: 1.0 |
| problemtype: | XML Improper restriction of external entity references (CWE-611) [ others ] | Trust: 0.8 |
PATCH
| title: | Asterisk xml.c uses unsafe XML_PARSE_NOENT leading to potential XXE Injection Advisory asterisk/asterisk GitHub | url: | https://github.com/asterisk/asterisk/security/advisories/GHSA-85x7-54wr-vh42 | Trust: 0.8 |
EXTERNAL IDS
| db: | NVD | id: | CVE-2026-23739 | Trust: 2.6 |
| db: | JVNDB | id: | JVNDB-2026-004116 | Trust: 0.8 |
REFERENCES
| url: | https://github.com/asterisk/asterisk/security/advisories/ghsa-85x7-54wr-vh42 | Trust: 1.0 |
| url: | https://nvd.nist.gov/vuln/detail/cve-2026-23739 | Trust: 0.8 |
SOURCES
| db: | JVNDB | id: | JVNDB-2026-004116 |
| db: | NVD | id: | CVE-2026-23739 |
LAST UPDATE DATE
2026-02-21T23:22:39.614000+00:00
SOURCES UPDATE DATE
| db: | JVNDB | id: | JVNDB-2026-004116 | date: | 2026-02-20T02:20:00 |
| db: | NVD | id: | CVE-2026-23739 | date: | 2026-02-18T18:42:37.300 |
SOURCES RELEASE DATE
| db: | JVNDB | id: | JVNDB-2026-004116 | date: | 2026-02-20T00:00:00 |
| db: | NVD | id: | CVE-2026-23739 | date: | 2026-02-06T17:16:26.147 |