CVEvulnerability

CVE-2026-12816

8.7 HIGH Published 2026-08-03 Modified 2026-09-02 Official page ↗
Status
Analyzed
Published
2026-08-03
Last modified
2026-09-02
Assigner
91579145-5d7b-4cc5-b925-a0262ff19630
CVSS 4.0 (91579145-5d7b-4cc5-b925-a0262ff19630)
8.7 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weaknesses
CWE-354

Description

In Bouncy Castle for Java before 1.85, IESEngine stream-mode MAC forgery via length-dependent KDF split. This issue also affects Bouncy Castle for Java LTS before 2.73.12.

Affected configurations

• bouncycastle bc-java (< 1.85) • bouncycastle bouncy castle for java lts (<= 2.73.11)

Related

Weakness · CWE (1)

  • CWE-354 Improper Validation of Integrity Check Value weakness

References