Answer in brief
CVE-2026-6732 records a Medium severity (CVSS 6.5) vulnerability in Libxml2: libxml2: denial of service via crafted xsd-validated document. The current sources do not mark it as known exploited. The current feed maps Red Hat/libxml2 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Red Hat/libxml2 (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:ibm:vios:4.1.2.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:redhat:jboss_core_services:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:ibm:aix:7.3.4:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Red Hat/libxml2generic | * | Not reported |
Published upstream
Apr 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 31, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 30, 2026
A flaw was found in libxml2. This vulnerability occurs when the library processes a specially crafted XML Schema Definition (XSD) validated document that includes an internal entity reference. An attacker could exploit this by providing a malicious document, leading to a type confusion error that causes the application to crash. This results in a denial of service (DoS), making the affected system or application unavailable.
Quoted source text, attributed separately from HOL analysis.