CVE-2026-76234
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| celabshq | libcrux-ecdh | 0 < 0.0.6 | affected |
| celabshq | libcrux-ecdh | 0.0.6 | unaffected |
| celabshq | libcrux-ed25519 | 0 < 0.0.6 | affected |
| celabshq | libcrux-ed25519 | 0.0.6 | unaffected |
| celabshq | libcrux-psq | 0 < 0.0.7 | affected |
| celabshq | libcrux-psq | 0.0.7 | unaffected |
Weaknesses
- CWE-347: Improper Verification of Cryptographic Signature
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
- https://github.com/celabshq/libcrux/security/advisories/GHSA-435g-fcv3-8j26
- https://www.vulncheck.com/advisories/libcrux-before-cryptographic-implementation-bug-fixes
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