CVE-2026-86140

High [CVE-2026-86140] Libxml2 Vulnerability in NetApp Products

NTAP-20261104-0013Source published Nov 4, 2026Source updated Nov 4, 2026

Libxml2 versions through 2.15.3 are susceptible to a vulnerability which when successfully exploited could lead to a stack-based buffer overflow. Successful exploitation of this vulnerability could lead to disclosure of sensitive information, addition or modification of data or Denial of Service (DoS). Affected products: ONTAP Select Deploy administration utility. NetApp reports that one or more additional products remain under investigation; review the canonical advisory for current status. NetApp states there is no workaround available at this time.

Affected products in this advisory

• ONTAP Select Deploy administration utility

Source-reported affected versions

• 2.15.3

Source-reported fixed versions

No fixed-version detail extracted. This does not mean no fix exists.

Mitigation guidance

No mitigation guidance extracted; consult the source.

High [CVE-2026-86140] Arbitrary code execution via stack-based buffer overflow in xmlSnprintfElements

CVE-2026-86140Source published Sep 5, 2026Source updated Sep 5, 2026

In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow. A flaw was found in libxml2. A local attacker could exploit a stack-based buffer overflow in the `xmlSnprintfElements` function to achieve arbitrary code execution. This vulnerability in a fundamental system library could lead to significant system compromise if successfully exploited. Red Hat severity: Important — CVSS 7.4 (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-120. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Cert Manager support for Red Hat OpenShift release 1.20; Red Hat Cost Management On-Premise 1; Red Hat Hardened Images; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat OpenShift…

Affected products in this advisory

• Red Hat Enterprise Linux 10
• Red Hat Enterprise Linux 8
• Red Hat Enterprise Linux 9
• Cert Manager support for Red Hat OpenShift release 1.20

6 more entries in the full advisory.

Source-reported affected versions

• < 2.15.4

Source-reported fixed versions

• libxml2-0:2.12.5-10.el10_2.4
• libxml2-0:2.9.7-21.el8_10.9
• libxml2-0:2.9.13-14.el9_8.5
• cert-manager/jetstack-cert-manager-rhel9:1790589912

12 more entries in the full advisory.

Mitigation guidance

• To mitigate this, administrators should disable DTD processing and validation for untrusted documents within libxml2 parsers and restrict network access so only authorized users can submit XML data to the application. For robust defense-in-depth against buffer overflow exploitation, ensure the library and dependent applications are compiled with memory safety flags like stack canaries (-fstack-protector-strong) and bounds checking (_FORTIFY_SOURCE=2), while verifying that standard OS-level protections such as ASLR and Data Execution Prevention (NX/XD Bit) are active on the host system.

Critical [CVE-2020-14040 +102] List of Security Fixes and Improvements in Veeam Kasten for Kubernetes

KB4825Source published Jun 16, 2026

This bulletin covers 103 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.

List of Security Fixes and Improvements in Veeam Kasten for Kubernetes KB ID: 4825 Product: Kasten K10 by Veeam | 3 | 5 | 5.5 | 6 | 6.5 Published: 2026-03-02 Last Modified: Purpose This article aims to provide our customers' security and compliance teams with detailed information on security improvements. - Veeam Kasten for Kubernetes — Release Notes - Upgraded the frontend's bundled JavaScript dependencies to resolve GHSA-g2v6-rqmx-r4w6 in @vue/server-renderer (High). - Also resolves 7 Medium severity CVEs in the same and other packages. - Upgraded to latest UBI base image to resolve multiple CVEs in base OS packages. - Updated the Go runtime to resolve additional upstream Go CVEs. - Updated the bundled Prometheus Helm chart to resolve security issues. - Upgraded the Prometheus base…

Related products — impact not confirmed

No product details extracted. Check the source bulletin.

Source-reported affected versions

Affected-version details not available in this record.

Source-reported fixed versions

• 8.5.10
• 8.5.5
• 1.26.1
• 8.5.3

20 more entries in the full advisory.

Mitigation guidance

• List of Security Fixes and Improvements in Veeam Kasten for Kubernetes KB ID: 4825 Product: Veeam Kasten for Kubernetes | 7 | 7.5 | 8 | 8.5 | 9 Kasten K10 by Veeam | 3 | 5 | 5.5 | 6 | 6.5 Published: 2026-03-02 Last Modified: 2026-10-23 Purpose This article describes all security-related fixes and improvements introduced in each release or update of Veeam Kasten for Kubernetes.
• It is recommended to upgrade Veeam Kasten and to refresh the token by manually logging out.
• Mitigation: Configure a bucket-level Default Object Lock retention so the object store stamps new objects at write time, or upgrade to Kasten 8.5.10.
• Veeam Kasten for Kubernetes 8.5.5 Upgrade to Go 1.26.1 to address CVE-2026-25679 and CVE-2026-27142 Updated the UBI base image to address CVE-2026-4111 Veeam Kasten for Kubernetes 8.5.3 Upgrade to Go 1.25.7 to address CVE-2025-61732.

4 more entries in the full advisory.

Workarounds

• Veeam Kasten for Kubernetes 8.0.14 Improved logging security for specific block mode datamover upload Pod invocations.