CVE-2026-76234
Published:August 19, 2026
Updated:September 24, 2026
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.
Affected Packages
libcrux-ed25519 (RUST):
Affected version(s) >=0.0.2-beta.3 <0.0.6Fix Suggestion:
Update to version 0.0.6libcrux-ecdh (RUST):
Affected version(s) >=0.0.2-alpha.1 <0.0.6Fix Suggestion:
Update to version 0.0.6libcrux-psq (RUST):
Affected version(s) >=0.0.2-beta.3 <0.0.7Fix Suggestion:
Update to version 0.0.7Related Resources (19)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Improper Verification of Cryptographic Signature
EPSS
Base Score:
0.22