{
  "threat_severity" : "Moderate",
  "public_date" : "2026-04-08T20:49:41Z",
  "bugzilla" : {
    "description" : "cryptography: Cryptography: Buffer overflow via non-contiguous buffer in API",
    "id" : "2456735",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2456735"
  },
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    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
    "status" : "verified"
  },
  "cwe" : "CWE-131",
  "details" : [ "cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 45.0.0 to before 46.0.7, if a non-contiguous buffer was passed to APIs which accepted Python buffers (e.g. Hash.update()), this could lead to buffer overflows. This vulnerability is fixed in 46.0.7.", "A flaw was found in the cryptography library. This vulnerability occurs when a non-contiguous buffer is passed to certain application programming interfaces (APIs) that accept Python buffers, such as Hash.update(). A remote attacker could exploit this to cause a buffer overflow, potentially leading to a denial of service." ],
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  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-39892\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-39892\nhttp://www.openwall.com/lists/oss-security/2026/04/08/12\nhttps://github.com/pyca/cryptography/commit/622d672e429a7cff836a23c5903683dbec1901f5\nhttps://github.com/pyca/cryptography/security/advisories/GHSA-p423-j2cm-9vmq" ],
  "name" : "CVE-2026-39892",
  "mitigation" : {
    "value" : "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
    "lang" : "en:us"
  },
  "csaw" : false
}