CVE-2026-23038

Published Jan 31, 2026

Overview

CVE-2026-23038 is a known-severity vulnerability. It was published on January 31, 2026.

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

pnfs/flexfiles: Fix memory leak in nfs4_ff_alloc_deviceid_node()

In nfs4_ff_alloc_deviceid_node(), if the allocation for ds_versions fails,

the function jumps to the out_scratch label without freeing the already

allocated dsaddrs list, leading to a memory leak.

Fix this by jumping to the out_err_drain_dsaddrs label, which properly

frees the dsaddrs list before cleaning up other resources.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Ref git.kernel.org/stable/c/0c728083654f0066f5e10a1d2b0bd0907af19a58 Ref git.kernel.org/stable/c/27c90d8ed81e7a289c9fe41b5e31d8bb609a3385 Ref git.kernel.org/stable/c/34b9dd179818ff7af2b36410985fd8166573c62d Ref git.kernel.org/stable/c/869862056e100973e76ce9f5f1b01837771b7722 Ref git.kernel.org/stable/c/86da7efd12295a7e2b4abde5e5984c821edd938f Ref git.kernel.org/stable/c/e2dde5dafb80f1af4028ed10ad255f42af71c784 Ref git.kernel.org/stable/c/ed5d3f2f6885eb99f729e6ffd946e3aa058bd3eb Ref cert-portal.siemens.com/productcert/html/ssa-019113.html Ref cert-portal.siemens.com/productcert/html/ssa-253495.html

Frequently Asked Questions

What is CVE-2026-23038?

CVE-2026-23038 is a known-severity vulnerability. It was published on January 31, 2026.

How severe is CVE-2026-23038?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-23038?

How can CyberStrike help with CVE-2026-23038?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-23038 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.