CVE-2026-23739

Ecosystem	Package	Version

Vulnerabilities

CVE-2026-23739

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.

Published Feb 9, 2026

https://github.com/asterisk/asterisk/security/advisories/GHSA-85x7-54wr-vh42

CVSS ScoreMedium

6.5


rpm	asterisk	1.8.32.3-2.el6
rpm	asterisk	18.12.1-1.el8.1
rpm	asterisk	18.12.1-1.el8.2
rpm	asterisk	18.12.1-1.el9.1
rpm	asterisk-ael	18.12.1-1.el8.1
rpm	asterisk-ael	18.12.1-1.el8.2
rpm	asterisk-ael	18.12.1-1.el9.1
rpm	asterisk-ael-debuginfo	18.12.1-1.el8.1
rpm	asterisk-ael-debuginfo	18.12.1-1.el8.2
rpm	asterisk-ael-debuginfo	18.12.1-1.el9.1
rpm	asterisk-alembic	18.12.1-1.el8.1
rpm	asterisk-alembic	18.12.1-1.el8.2
rpm	asterisk-alembic	18.12.1-1.el9.1
rpm	asterisk-alsa	1.8.32.3-2.el6
rpm	asterisk-alsa	18.12.1-1.el8.1
rpm	asterisk-alsa	18.12.1-1.el8.2
rpm	asterisk-alsa	18.12.1-1.el9.1
rpm	asterisk-alsa-debuginfo	18.12.1-1.el8.1
rpm	asterisk-alsa-debuginfo	18.12.1-1.el8.2
rpm	asterisk-alsa-debuginfo	18.12.1-1.el9.1
rpm	asterisk-calendar	1.8.32.3-2.el6
rpm	asterisk-calendar	18.12.1-1.el8.1
rpm	asterisk-calendar	18.12.1-1.el8.2
rpm	asterisk-calendar	18.12.1-1.el9.1
rpm	asterisk-calendar-debuginfo	18.12.1-1.el8.1
rpm	asterisk-calendar-debuginfo	18.12.1-1.el8.2
rpm	asterisk-calendar-debuginfo	18.12.1-1.el9.1
rpm	asterisk-corosync	18.12.1-1.el8.1
rpm	asterisk-corosync	18.12.1-1.el8.2
rpm	asterisk-corosync	18.12.1-1.el9.1
rpm	asterisk-corosync-debuginfo	18.12.1-1.el8.1
rpm	asterisk-corosync-debuginfo	18.12.1-1.el8.2
rpm	asterisk-corosync-debuginfo	18.12.1-1.el9.1
rpm	asterisk-curl	1.8.32.3-2.el6
rpm	asterisk-curl	18.12.1-1.el8.1
rpm	asterisk-curl	18.12.1-1.el8.2
rpm	asterisk-curl	18.12.1-1.el9.1
rpm	asterisk-curl-debuginfo	18.12.1-1.el8.1
rpm	asterisk-curl-debuginfo	18.12.1-1.el8.2
rpm	asterisk-curl-debuginfo	18.12.1-1.el9.1
rpm	asterisk-dahdi	1.8.32.3-2.el6
rpm	asterisk-dahdi	18.12.1-1.el8.1
rpm	asterisk-dahdi	18.12.1-1.el8.2
rpm	asterisk-dahdi	18.12.1-1.el9.1
rpm	asterisk-dahdi-debuginfo	18.12.1-1.el8.1
rpm	asterisk-dahdi-debuginfo	18.12.1-1.el8.2
rpm	asterisk-dahdi-debuginfo	18.12.1-1.el9.1
rpm	asterisk-debuginfo	1.8.32.3-2.el6
rpm	asterisk-debuginfo	18.12.1-1.el8.1
rpm	asterisk-debuginfo	18.12.1-1.el8.2

Ecosystem	Package	Version

CVE-2026-23739 | Components Impacted | Sonatype Guide | Sonatype Guide

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CVE-2026-23739