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BREW-CRYPTOGRAPHY-CVE-20… (CVE-2023-50782)

Vulnerability from osv_homebrew – Published: 2026-08-13 16:41 – Updated: 2026-09-09 23:49 – Source website
VLAI
Summary
Python-cryptography: bleichenbacher timing oracle attack against rsa decryption - incomplete fix for cve-2020-25659
Details

A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "42.0.0"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "cryptography",
        "purl": "pkg:brew/cryptography"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "50.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "git",
    "upstream_evidence": [
      {
        "ecosystem": "GIT",
        "key": "https://github.com/pyca/cryptography",
        "name": "https://github.com/pyca/cryptography",
        "strategy": "git",
        "subject_version": "50.0.1"
      },
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/cryptography@50.0.1",
        "name": "cryptography",
        "strategy": "registry",
        "subject_version": "50.0.1"
      }
    ]
  },
  "details": "A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.",
  "id": "BREW-cryptography-CVE-2023-50782",
  "modified": "2026-09-09T23:49:07Z",
  "published": "2026-08-13T16:41:16Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://access.redhat.com/downloads/content/package-browser/"
    },
    {
      "type": "WEB",
      "url": "https://www.couchbase.com/alerts/"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2023-50782"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/50xxx/CVE-2023-50782.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-50782"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2254432"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pyca/cryptography"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Python-cryptography: bleichenbacher timing oracle attack against rsa decryption - incomplete fix for cve-2020-25659",
  "upstream": [
    "CVE-2023-50782",
    "GHSA-3ww4-gg4f-jr7f",
    "PYSEC-2026-1283"
  ]
}



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