SEPTEMBER 19, 2026
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Case File

CVE-2026-76234

HIGH · CVSS 7.5 EPSS 0.22% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-19 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

The libcrux-ecdh, libcrux-ed25519, and libcrux-psq libraries prior to their respective patched versions contain critical cryptographic implementation flaws, including improper validation of secret lengths and clamping checks, which could lead to vulnerabilities in key generation and error handling. This could potentially allow attackers to exploit these weaknesses for unauthorized access or data manipulation. Organizations utilizing these libraries should prioritize updating to the latest versions to mitigate the risk of exploitation.

Public Exploit Signal

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

GitHub PoC Links

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

CVE
CVE-2026-76234
Severity
HIGH
CVSS
7.5
EPSS
0.22%

Original NVD Description

libcrux-ecdh and libcrux-ed25519 before 0.0.6, and libcrux-psq before 0.0.7, contain cryptographic implementation bugs. libcrux-ecdh did not properly check length and clamping during X25519 secret validation (and had a broken clamping check for imported X25519 secret keys); libcrux-ed25519 performed a duplicated clamping step during key generation; and libcrux-psq panicked instead of propagating an AEADError. These were fixed in the respective patched releases.