CVE-2026-6732
Libxml2: libxml2: denial of service via crafted xsd-validated document
02 Description
Libxml2: libxml2: denial of service via crafted xsd-validated document
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.63% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 50.1% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-26.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-04-23 22:19Z6 MO AGO
- Last updated
- 2026-08-31 11:15Z1 MO AGO
- Reserved
- 2026-04-20
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.5)
- CNA CVSS vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-843Access of Resource Using Incompatible Type ('Type Confusion')Base
- Data version
- 5.2
- Document digest
- 1b1a5121c56def662be70b5ca4533c9ce595ee64b97987d40cd7a6b16b5a1815
05 Affected products
06 References
- access.redhat.comRHSA-2026:11503https://access.redhat.com/errata/RHSA-2026:11503
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-6732
- bugzilla.redhat.comRHBZ#2461300https://bugzilla.redhat.com/show_bug.cgi?id=2461300
- gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libxml2/-/issues/1097
- gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/411
07 Fixed in
Debian 14
- libxml2 Fixed in 2.15.3+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- libxml2 Fixed in 2.14.5+dfsg-0.2ubuntu0.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- libxml2 Fixed in 2.15.2+dfsg-0.1ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.