Unbounded Memory Allocation Vulnerability in Bouncy Castle Java by Bouncy Castle
CVE-2026-14682

8.7HIGH

Key Information:

Vendor

Legion Of The Bouncy Castle Inc.

Status
Bc-java
Bc-lts-java
Bc-fja
Vendor
CVE Published:
3 August 2026

What is CVE-2026-14682?

The vulnerability in Bouncy Castle for Java allows for a possible out-of-memory (OOM) condition due to unbounded up-front allocation during a definite-length read operation. This issue impacts not only the standard version of Bouncy Castle for Java but also its LTS and FIPS versions, leading to potential resource exhaustion that could affect the stability and reliability of applications relying on this library. Developers are advised to review the respective product documentation and apply the latest patches to mitigate potential risks.

Affected Version(s)

BC-FJA all 1.0.0 < 1.0.2.7

BC-FJA all 2.0.0 < 2.0.2

BC-FJA all 2.1.0 < 2.1.3

References

https://github.com/bcgit/bc-java/wiki/CVE-2026-14682
vendor-advisory
https://github.com/bcgit/bc-java/commit/37094e504ef50cf9c...
patch

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Michał Majchrowicz and Marcin Wyczechowski, members of the AFINE Team.
.