{"cve":"CVE-2026-39892","nvd":{"published":"2026-04-08T21:17:01.547","modified":"2026-09-10T13:20:00.007","status":"Modified","description":"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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":6.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-119","CWE-131"],"references":["https://github.com/pyca/cryptography/security/advisories/GHSA-p423-j2cm-9vmq","http://www.openwall.com/lists/oss-security/2026/04/08/12","https://access.redhat.com/errata/RHSA-2026:19375","https://access.redhat.com/errata/RHSA-2026:20338","https://access.redhat.com/errata/RHSA-2026:21017"],"products":["cryptography.io:cryptography"],"source":"nvd","synced_at":"2026-10-19T22:28:59.047572785+00:00"},"epss":{"cve":"CVE-2026-39892","score":0.00652,"percentile":0.51253,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-p423-j2cm-9vmq","url":"https://osv.dev/vulnerability/GHSA-p423-j2cm-9vmq","summary":"Cryptography vulnerable to buffer overflow if non-contiguous buffers were passed to APIs","modified":"2026-09-10T03:50:44.766981051Z","packages":[{"ecosystem":"PyPI","name":"cryptography","purl":"pkg:pypi/cryptography","ranges":[">=45.0.0 <46.0.7"],"fixed":["46.0.7"]}]},{"id":"PYSEC-2026-36","url":"https://osv.dev/vulnerability/PYSEC-2026-36","summary":"","modified":"2026-05-20T09:18:55.965312Z","packages":[{"ecosystem":"PyPI","name":"cryptography","purl":"pkg:pypi/cryptography","ranges":[">=45.0.0 <46.0.7"],"fixed":["46.0.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}