SB2026042979 - Type confusion in libxml2
Published: April 29, 2026
Security Bulletin ID
SB2026042979
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Type confusion (CVE-ID: CVE-2026-6732)
CWE-ID: CWE-843 - Type confusion
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to crash the application.
The vulnerability exists due to a type confusion error when the library processes a specially crafted XML Schema Definition (XSD) validated document that includes an internal entity reference. A remote attacker can supply a specially crafted XML document to the application and perform a denial of service attack.
Remediation
Install update from vendor's website.