CVE-2026-6732
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | affected | |
| debian | bullseye | affected | |
| debian | forky | affected | |
| debian | sid | affected | |
| debian | trixie | affected | |
| sles | affected | | |
| rhel | 6.0 | affected | |
| rhel | 7.0 | affected | |
| rhel | 8.0 | affected | |
| rhel | 9.0 | affected | |
| rhel | 10.0 | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| xmlsoft | libxml2 | {"startIncluding":"2.13.0","endExcluding":"2.15.3"} | 2.15.3 |
| redhat | hardened_images | - | |
| redhat | jboss_core_services | - | |
| redhat | openshift_container_platform | 4.0 | |
| gcp | | |
References
- https://access.redhat.com/errata/RHSA-2026:11503
- https://access.redhat.com/security/cve/CVE-2026-6732
- https://bugzilla.redhat.com/show_bug.cgi?id=2461300
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/1097
- https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/411
- https://security-tracker.debian.org/tracker/CVE-2026-6732
- https://www.suse.com/security/cve/CVE-2026-6732.html
CWEs
CWE-843
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.