{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.0.6"
              },
              {
                "fixed": "0.0.7"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "c5fb80f37530ee9b2df9501ae5ff8cb4a973a4bd"
            }
          ],
          "repo": "https://github.com/celabshq/libcrux",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-435g-fcv3-8j26"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-347"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76234.json"
  },
  "details": "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.",
  "id": "CVE-2026-76234",
  "modified": "2026-08-23T03:42:54.175488751Z",
  "published": "2026-08-19T14:02:14.481Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76234.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/celabshq/libcrux/security/advisories/GHSA-435g-fcv3-8j26"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76234"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/libcrux-before-cryptographic-implementation-bug-fixes"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "libcrux before 0.0.6 Cryptographic Implementation Bug Fixes"
}