SEPTEMBER 17, 2026
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Case File

CVE-2026-12860

MEDIUM · CVSS 5.3 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 and LTS versions before 2.73.12 are vulnerable due to a flaw in RSA PKCS#1 verification that omits the last two hash bytes in a NULL-omitted path, potentially allowing for signature forgery. This vulnerability could lead to unauthorized access or manipulation of data, making it critical for developers and organizations using these versions of Bouncy Castle to prioritize updates to mitigate potential security 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-2026-12860
Severity
MEDIUM
CVSS
5.3
EPSS
0.14%
Java

Original NVD Description

In Bouncy Castle for Java before 1.85, RSA PKCS#1 verification skips last two hash bytes in NULL-omitted path. This issue also affects Bouncy Castle for Java LTS before 2.73.12.

Related CVEs

Other vulnerabilities affecting the same vendor(s)