CVE-2026-14682: Bouncycastle Bc-Java

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

In Bouncy Castle for Java before 1.85, Possible OOM from unbounded up-front allocation on a definite-length read. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series), and before bctls-fips 1.0.24.

Affected products

  • Bouncycastle Bc-Java: before 1.85 (fixed in 1.85)
  • Bouncycastle Bctls-Fips: before 1.0.24 (fixed in 1.0.24)
  • Bouncycastle Bouncy Castle For Java LTS: up to and including 2.73.11
  • Bouncycastle Fips Java API: from 1.0.0, before 1.0.2.7 (fixed in 1.0.2.7); from 2.0.0, before 2.0.2 (fixed in 2.0.2); from 2.1.0, before 2.1.3 (fixed in 2.1.3)

Published 2026-08-03. Last modified 2026-08-28.