Information disclosure in Linux kernel - CVE-2026-31410
Published: April 21, 2026
Vulnerability identifier: #VU126690
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-31410
CWE-ID: CWE-200
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote user to gain access to potentially sensitive information.
The vulnerability exists due to an error within the smb2_get_info_filesystem() function in fs/smb/server/smb2pdu.c when working with volume identifiers. A remote user can force the ksmbd to return information related to a wrong volume.
How to mitigate CVE-2026-31410
Install updates from vendor's website.