Improper validation of integrity check value in Linux kernel - CVE-2026-31719
Published: May 2, 2026
Vulnerability identifier: #VU128976
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-31719
CWE-ID: CWE-354
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to bypass integrity verification.
The vulnerability exists due to improper integrity check handling in krb5enc_dispatch_decrypt() when processing asynchronous decrypt operations. A local user can trigger asynchronous decryption completion to bypass integrity verification.
How to mitigate CVE-2026-31719
Install security update from vendor's repository.