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TI-2024-37146 Aliases CVE-2024-56171GHSA-m366-8h8r-6fqr

Use after free in xmlsoft libxml2

Priority MEDIUM 45CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 45 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01178 67th percentileScored 2026-11-07
Fix Partial libxml2 (xmlsoft): 2.12.10, 2.13.6Red Hat: 26 advisoriesRed Hat: 45 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
xmlsoftlibxml2before 2.12.10; 2.13.0 to before 2.13.62.12.10, 2.13.6Patch availableCNA
  • libxml2 Vendorxmlsoft Affected before 2.12.10; 2.13.0 to before 2.13.6 Fixed in 2.12.10, 2.13.6 Patch available CNA

CPE configurations NVD · 17

CPEVersionsRoleVendor
cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*before 2.12.10; 2.13.0 to before 2.13.6Vulnerablexmlsoft
cpe:2.3:o:netapp:hci_compute_node:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
  • cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* Versions before 2.12.10; 2.13.0 to before 2.13.6 Vulnerable ·xmlsoft
  • cpe:2.3:o:netapp:hci_compute_node:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
Show 7 more CPE
CPEVersionsRoleVendor
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vsphere:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:manageability_software_development_kit:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:ontap:9:*:*:*:*:*:*:*9VulnerableNetApp
cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
  • cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vsphere:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:manageability_software_development_kit:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:ontap:9:*:*:*:*:*:*:* Versions 9 Vulnerable ·NetApp
  • cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp

Remediation

  • Fix · CNA libxml2 (xmlsoft) Fixed in 2.12.10, 2.13.6

Red Hat 26 advisories

  • RHSA-2026:67857 Released 2026-09-28 · Red Hat rating Important
    OpenShift Container Platform 4.15.69 bug fix and security update
    • Red Hat OpenShift Container Platform 4.15 rhcos-aarch64-415.92.202609140326-0, rhcos-ppc64le-415.92.202609140326-0, rhcos-s390x-415.92.202609140326-0 +1
  • RHSA-2025:9895 Released 2025-06-30 · Red Hat rating Important
    Red Hat Service Interconnect security update
    • 9Base-Service-Interconnect-1.4 service-interconnect/skupper-config-sync-rhel9, service-interconnect/skupper-flow-collector-rhel9, service-interconnect/skupper-operator-bundle +3
  • RHSA-2025:9278 Released 2025-06-24 · Red Hat rating Important
    OpenShift Container Platform 4.19.1 bug fix and security update
    • Red Hat OpenShift Container Platform 4.19 openshift4/aws-karpenter-provider-aws-rhel9, openshift4/aws-kms-encryption-provider-rhel9, openshift4/azure-kms-encryption-provider-rhel9 +47
Show 23 more Red Hat advisories
  • RHSA-2025:4005 Released 2025-04-17 · Red Hat rating Important
    Updated service-interconnect rhel9 container images for 1.8
    • Red Hat Service Interconnect 1 service-interconnect/skupper-config-sync-rhel9, service-interconnect/skupper-controller-podman-container-rhel9, service-interconnect/skupper-controller-podman-rhel9 +5
  • RHSA-2025:3867 Released 2025-04-14 · Red Hat rating Important
    Network Observability 1.8.1 for OpenShift
    • Red Hat Openshift Network Observability 1.8.1 registry.redhat.io/network-observability/network-observability-rhel9-operator
  • RHSA-2025:3573 Released 2025-04-10 · Red Hat rating Important
    OpenShift Container Platform 4.12.75 packages and security update
    • Red Hat OpenShift Container Platform 4.12 openshift4/network-tools-rhel8, openshift4/ose-agent-installer-node-agent-rhel8, openshift4/ose-docker-builder +5
  • RHSA-2025:3569 Released 2025-04-09 · Red Hat rating Important
    OpenShift Container Platform 4.14.50 bug fix and security update
    • Red Hat OpenShift Container Platform 4.14 openshift4/ose-azure-workload-identity-webhook-rhel8, openshift4/ose-cloud-credential-operator, rhcos
  • RHSA-2025:3301 Released 2025-04-03 · Red Hat rating Important
    OpenShift Container Platform 4.16.38 bug fix and security update
    • Red Hat OpenShift Container Platform 4.16 openshift4/ose-agent-installer-api-server-rhel9, openshift4/ose-aws-pod-identity-webhook-rhel9, openshift4/ose-azure-workload-identity-webhook-rhel9 +3
  • RHSA-2025:3453 Released 2025-04-02 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.62 security update
    • Red Hat JBoss Core Services 2.4.62
  • RHSA-2025:3397 Released 2025-03-31 · Red Hat rating Important
    RHOAI 2.16.0 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 2.16 registry.redhat.io/rhoai/odh-codeflare-operator-rhel8, registry.redhat.io/rhoai/odh-dashboard-rhel8, registry.redhat.io/rhoai/odh-data-science-pipelines-argo-argoexec-rhel8 +13
  • RHSA-2025:3368 Released 2025-03-27 · Red Hat rating Important
    RHOAI 2.16.0 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 2.16 registry.redhat.io/rhoai/odh-codeflare-operator-rhel8, registry.redhat.io/rhoai/odh-dashboard-rhel8, registry.redhat.io/rhoai/odh-data-science-pipelines-argo-argoexec-rhel8 +13
  • RHSA-2025:3055 Released 2025-03-26 · Red Hat rating Important
    OpenShift Container Platform 4.15.48 security update
    • Red Hat OpenShift Container Platform 4.15 rhcos
  • RHSA-2025:3059 Released 2025-03-26 · Red Hat rating Important
    OpenShift Container Platform 4.17.22 bug fix and security update
    • Red Hat OpenShift Container Platform 4.17 openshift4/ose-aws-pod-identity-webhook-rhel9, openshift4/ose-azure-workload-identity-webhook-rhel9, openshift4/ose-cloud-credential-rhel9-operator +1
  • RHSA-2025:3066 Released 2025-03-25 · Red Hat rating Important
    OpenShift Container Platform 4.18.6 bug fix and security update
    • Red Hat OpenShift Container Platform 4.18 openshift4/ose-aws-pod-identity-webhook-rhel9, openshift4/ose-azure-workload-identity-webhook-rhel9, openshift4/ose-cloud-credential-rhel9-operator +1
  • RHSA-2025:2701 Released 2025-03-20 · Red Hat rating Important
    OpenShift Container Platform 4.13.56 bug fix and security update
    • Red Hat OpenShift Container Platform 4.13 openshift4/ose-agent-installer-csr-approver-rhel8, openshift4/ose-agent-installer-node-agent-rhel8, openshift4/ose-agent-installer-orchestrator-rhel8 +3
  • RHSA-2025:2789 Released 2025-03-13 · Red Hat rating Important
    Red Hat build of OpenTelemetry 3.5.0 release
    • Red Hat OpenShift distributed tracing 3.5.3 registry.redhat.io/rhosdt/opentelemetry-collector-rhel8, registry.redhat.io/rhosdt/opentelemetry-rhel8-operator, registry.redhat.io/rhosdt/opentelemetry-target-allocator-rhel8
  • RHSA-2025:2686 Released 2025-03-12 · Red Hat rating Important
    libxml2 security update
    • Red Hat Enterprise Linux AppStream (v. 8) libxml2-devel-2.9.7-19.el8_10
    • Red Hat Enterprise Linux BaseOS (v. 8) libxml2-2.9.7-19.el8_10, python3-libxml2-2.9.7-19.el8_10
  • RHSA-2025:2679 Released 2025-03-12 · Red Hat rating Important
    libxml2 security update
    • Red Hat Enterprise Linux AppStream (v. 9) libxml2-devel-2.9.13-6.el9_5.2
    • Red Hat Enterprise Linux BaseOS (v. 9) libxml2-2.9.13-6.el9_5.2, python3-libxml2-2.9.13-6.el9_5.2
  • RHSA-2025:2678 Released 2025-03-12 · Red Hat rating Important
    libxml2 security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) libxml2-devel-2.9.13-9.el9_4
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) libxml2-2.9.13-9.el9_4, python3-libxml2-2.9.13-9.el9_4
  • RHSA-2025:2673 Released 2025-03-12 · Red Hat rating Important
    libxml2 security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) libxml2-2.9.1-6.el7_9.9, libxml2-2.9.1-6.el7_9.9.ppc, libxml2-devel-2.9.1-6.el7_9.9 +2
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) libxml2-static-2.9.1-6.el7_9.9, libxml2-static-2.9.1-6.el7_9.9.ppc
  • RHSA-2025:2660 Released 2025-03-11 · Red Hat rating Important
    libxml2 security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) libxml2-devel-2.9.7-9.el8_4.5
    • Red Hat Enterprise Linux AppStream E4S (v.8.4) libxml2-devel-2.9.7-9.el8_4.5
    • Red Hat Enterprise Linux AppStream TUS (v.8.4) libxml2-devel-2.9.7-9.el8_4.5
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) libxml2-2.9.7-9.el8_4.5, python3-libxml2-2.9.7-9.el8_4.5
    • Red Hat Enterprise Linux BaseOS E4S (v.8.4) libxml2-2.9.7-9.el8_4.5, python3-libxml2-2.9.7-9.el8_4.5
    • Red Hat Enterprise Linux BaseOS TUS (v.8.4) libxml2-2.9.7-9.el8_4.5, python3-libxml2-2.9.7-9.el8_4.5
  • RHSA-2025:2654 Released 2025-03-11 · Red Hat rating Important
    libxml2 security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) libxml2-devel-2.9.7-9.el8_2.1
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) libxml2-2.9.7-9.el8_2.1, python3-libxml2-2.9.7-9.el8_2.1
  • RHSA-2025:2513 Released 2025-03-10 · Red Hat rating Important
    libxml2 security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.6) libxml2-devel-2.9.7-13.el8_6.8
    • Red Hat Enterprise Linux AppStream E4S (v.8.6) libxml2-devel-2.9.7-13.el8_6.8
    • Red Hat Enterprise Linux AppStream TUS (v.8.6) libxml2-devel-2.9.7-13.el8_6.8
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) libxml2-2.9.7-13.el8_6.8, python3-libxml2-2.9.7-13.el8_6.8
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) libxml2-2.9.7-13.el8_6.8, python3-libxml2-2.9.7-13.el8_6.8
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) libxml2-2.9.7-13.el8_6.8, python3-libxml2-2.9.7-13.el8_6.8
  • RHSA-2025:2507 Released 2025-03-10 · Red Hat rating Important
    libxml2 security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) libxml2-devel-2.9.7-16.el8_8.7
    • Red Hat Enterprise Linux BaseOS EUS (v.8.8) libxml2-2.9.7-16.el8_8.7, python3-libxml2-2.9.7-16.el8_8.7
  • RHSA-2025:2483 Released 2025-03-10 · Red Hat rating Important
    libxml2 security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) libxml2-devel-2.9.13-1.el9_0.4
    • Red Hat Enterprise Linux BaseOS E4S (v.9.0) libxml2-2.9.13-1.el9_0.4, python3-libxml2-2.9.13-1.el9_0.4
  • RHSA-2025:2482 Released 2025-03-10 · Red Hat rating Important
    libxml2 security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) libxml2-devel-2.9.13-3.el9_2.6
    • Red Hat Enterprise Linux BaseOS EUS (v.9.2) libxml2-2.9.13-3.el9_2.6, python3-libxml2-2.9.13-3.el9_2.6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    xmlsoft libxml2 2.12.10, 2.13.6

    3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2025-18627 Stack-based buffer overflow in xmlsoft libxml2Priority LOW 36
    • TI-2025-19983 libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in pattern.c.Priority LOW 35
    Show all 3 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
9Base-Service-Interconnect-1.4Fixed RHSA-2025:9895
Red Hat Enterprise Linux AppStream (v. 10)Fixed—
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2025:2686
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:2679
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2025:2654
Red Hat Enterprise Linux AppStream AUS (v.8.4)Fixed RHSA-2025:2660
Red Hat Enterprise Linux AppStream AUS (v.8.6)Fixed RHSA-2025:2513
Red Hat Enterprise Linux AppStream E4S (v.8.4)Fixed RHSA-2025:2660
Red Hat Enterprise Linux AppStream E4S (v.8.6)Fixed RHSA-2025:2513
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2025:2483
Red Hat Enterprise Linux AppStream EUS (v.8.8)Fixed RHSA-2025:2507
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2025:2482
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:2678
Red Hat Enterprise Linux AppStream TUS (v.8.4)Fixed RHSA-2025:2660
Red Hat Enterprise Linux AppStream TUS (v.8.6)Fixed RHSA-2025:2513
Red Hat Enterprise Linux BaseOS (v. 10)Fixed—
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2025:2686
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:2679
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2025:2654
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2025:2660
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2025:2513
Red Hat Enterprise Linux BaseOS E4S (v.8.4)Fixed RHSA-2025:2660
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2025:2513
Red Hat Enterprise Linux BaseOS E4S (v.9.0)Fixed RHSA-2025:2483
Red Hat Enterprise Linux BaseOS EUS (v.8.8)Fixed RHSA-2025:2507
Red Hat Enterprise Linux BaseOS EUS (v.9.2)Fixed RHSA-2025:2482
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2025:2678
Red Hat Enterprise Linux BaseOS TUS (v.8.4)Fixed RHSA-2025:2660
Red Hat Enterprise Linux BaseOS TUS (v.8.6)Fixed RHSA-2025:2513
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed—
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2025:2673
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2025:2673
Red Hat JBoss Core Services 2.4.62Fixed RHSA-2025:3453
Red Hat OpenShift AI 2.16Fixed RHSA-2025:3368, RHSA-2025:3397
Red Hat OpenShift Container Platform 4.12Fixed RHSA-2025:3573
Red Hat OpenShift Container Platform 4.13Fixed RHSA-2025:2701
Red Hat OpenShift Container Platform 4.14Fixed RHSA-2025:3569
Red Hat OpenShift Container Platform 4.15Fixed RHSA-2025:3055, RHSA-2026:67857
Red Hat OpenShift Container Platform 4.16Fixed RHSA-2025:3301
Red Hat OpenShift Container Platform 4.17Fixed RHSA-2025:3059
Red Hat OpenShift Container Platform 4.18Fixed RHSA-2025:3066
Red Hat OpenShift Container Platform 4.19Fixed RHSA-2025:9278
Red Hat OpenShift distributed tracing 3.5.3Fixed RHSA-2025:2789
Red Hat Openshift Network Observability 1.8.1Fixed RHSA-2025:3867
Red Hat Service Interconnect 1Fixed RHSA-2025:4005
Not affected: 10 products
  • Red Hat OpenShift AI 2.16
  • Red Hat OpenShift Container Platform 4.12
  • Red Hat OpenShift Container Platform 4.13
  • Red Hat OpenShift Container Platform 4.14
  • Red Hat OpenShift Container Platform 4.15
  • Red Hat OpenShift Container Platform 4.16
  • Red Hat OpenShift Container Platform 4.17
  • Red Hat OpenShift Container Platform 4.18
  • Red Hat OpenShift distributed tracing 3.5.3
  • Red Hat Openshift Network Observability 1.8.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-56171
  2. 2026-10-03 Alias added: GHSA-m366-8h8r-6fqr
  3. 2026-10-09 Fix available: RHSA-2025:3453 · Red Hat
  4. 2026-10-09 Fix available: Red Hat JBoss Core Services 2.4.62 · Red Hat

References

Advisory 1

Other 1

  • TI-2020-06117 xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation. CVSS 3.1HIGH 7.5
  • TI-2025-05441 Libxml2: integer overflow in xmlbuildqname() leads to stack buffer overflow in libxml2 CVSS 3.1HIGH 7.5
  • TI-2024-22792 An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. CVSS 3.1HIGH 7.5
  • TI-2017-06514 libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the… CVSS 3.1HIGH 7.5
  • TI-2022-19140 An issue was discovered in libxml2 before 2.10.3. CVSS 3.1HIGH 7.5
  • TI-2025-23491 Out-of-bounds read in xmlsoft libxml2 CVSS 3.1HIGH 7.5
See all 114 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences