{"id":"CVE-2026-39892","aliases":["GHSA-p423-j2cm-9vmq","PYSEC-2026-36"],"url":"https://o3.security/vulnerability/CVE-2026-39892","summary":"cryptography has a buffer overflow if non-contiguous buffers were passed to APIs","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.","published":"2026-04-08T20:49:41.967Z","modified":"2026-08-04T03:32:47.865477766Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"cryptography","fixedVersion":"46.0.7"}],"fix":null,"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/04/08/12"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39892.json"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:19375"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:20338"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:21017"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:22465"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:22629"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:22840"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:23361"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:24483"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:24761"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:24762"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:24853"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:24866"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:24977"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:30088"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:30089"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:37275"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:42644"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:43651"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:43670"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:43851"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:43853"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:43854"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:43855"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:46956"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:7295"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-39892"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39892.json"},{"type":"ADVISORY","url":"https://github.com/pyca/cryptography/security/advisories/GHSA-p423-j2cm-9vmq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39892"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2456735"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-04T03:32:47.865477766Z"}}