CVE Database›Document archive›CVE-2026-23303

CVE-2026-23303

kernel: smb: client: Don't log plaintext credentials in cifs_set_cifscreds

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · March 25, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's Server Message Block (SMB) client. When debug logging is enabled, the cifs_set_cifscreds() function logs plaintext credentials, including usernames and passwords. This information disclosure vulnerability allows a local attacker with access to the debug logs to retrieve sensitive authentication details. The primary consequence is the exposure of user credentials, which could lead to unauthorized access to SMB resources.

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-256 · Plaintext Storage of a Password