SEPTEMBER 17, 2026
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Case File

CVE-2026-12817

HIGH · CVSS 8.6 EPSS 0.14% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-03 · Last synced 2026-09-02

CyberRota Analysis

AI-Generated

Bouncy Castle for Java versions prior to 1.85, as well as specific LTS and FIPS versions, are vulnerable due to a flaw in the OpenPGP AEAD decryption process, which improperly skips the final tag on chunk-aligned data. This vulnerability could lead to potential data integrity issues during decryption, making it critical for developers and organizations using these libraries for cryptographic operations to prioritize updates. Users of affected versions should assess their systems for exposure and apply the necessary patches to mitigate risks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-12817
Severity
HIGH
CVSS
8.6
EPSS
0.14%
Java

Original NVD Description

In Bouncy Castle for Java before 1.85, OpenPGP AEAD decryption skips final tag on chunk-aligned data. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 1.0.13 (1.0.X series), 2.0.13 (2.0.X series) and 2.1.13 (2.1.X series).

Related CVEs

Other vulnerabilities affecting the same vendor(s)