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CVE-2026-42768 Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt()

🗓️ 09 Jun 2026 16:03:28Reported by opensslType 
cvelist
 cvelist
🔗 www.cve.org👁 30 Views

Bleichenbacher-style oracle in CMS_decrypt and PKCS7_decrypt, two variants, may decrypt or forge with the victim's private key.

Related
Affected
Refs
[
  {
    "defaultStatus": "unaffected",
    "product": "OpenSSL",
    "vendor": "OpenSSL",
    "versions": [
      {
        "lessThan": "4.0.1",
        "status": "affected",
        "version": "4.0.0",
        "versionType": "semver"
      },
      {
        "lessThan": "3.6.3",
        "status": "affected",
        "version": "3.6.0",
        "versionType": "semver"
      },
      {
        "lessThan": "3.5.7",
        "status": "affected",
        "version": "3.5.0",
        "versionType": "semver"
      },
      {
        "lessThan": "3.4.6",
        "status": "affected",
        "version": "3.4.0",
        "versionType": "semver"
      }
    ]
  }
]

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