CVE-2026-8149 MEDIUM

CVE-2026-8149: GCM chunking can lead to bad tag exception on decryption

Vendor Legion Of The Bouncy Castle Inc.
Product BC-LTS
Weakness CWE-1068
Published May 8, 2026
Last update May 18, 2026
View on NVD All CVEs

CVSS base score

5.1/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/S:N/RE:M/U:Amber

What the vulnerability does

01Description

A vulnerability in Legion of the Bouncy Castle Inc. BC-LTS on Linux, X86_64, AVX, AVX-512f. This vulnerability is associated with program files gcm128w, gcm512w. This issue affects BC-LTS: from 2.73.0 before 2.73.11.

Key dates

02Disclosure timeline

May 8, 2026 CVE published
May 18, 2026 Record updated