CVE Database›Document archive›CVE-2026-89975

CVE-2026-89975

kernel: nvme-fabrics: fix DHCHAP secret leak on parse failure

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 16, 2026

Updated · October 6, 2026

Description

A flaw was found in the Linux kernel's nvme-fabrics module. A local attacker could repeatedly provide malformed DHCHAP (Diffie-Hellman Challenge-Handshake Authentication Protocol) secrets, leading to a memory leak. This vulnerability occurs during the parsing of these secrets, where temporary strings containing sensitive data are not properly freed upon validation failure. Consequently, an attacker could potentially gain access to secret material.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-772 · Missing Release of Resource after Effective Lifetime