{"id":"CVE-2023-50782","aliases":["GHSA-3ww4-gg4f-jr7f","PYSEC-2026-1283"],"title":"Python Cryptography package vulnerable to Bleichenbacher timing oracle attack","summary":"Python Cryptography package vulnerable to Bleichenbacher timing oracle attack","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","vendor":"cryptography","product":"cryptography","ecosystem":"pip","affected":["cryptography < 42.0.0"],"patched":["cryptography 42.0.0"],"published":"2024-02-05","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:50:05.279171645Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-3ww4-gg4f-jr7f","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-50782"},{"url":"https://github.com/pyca/cryptography/issues/9785"},{"url":"https://access.redhat.com/security/cve/CVE-2023-50782"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2254432"},{"url":"https://github.com/pyca/cryptography"},{"url":"https://www.couchbase.com/alerts"}],"tags":["osv","pip"],"epss":0.01118,"epssPercentile":0.64721,"ingestedAt":"2026-07-08T18:25:45.193Z","slug":"CVE-2023-50782","body":"## Overview\n\nA 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.\n\n## Affected packages\n\n- `cryptography < 42.0.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `cryptography 42.0.0`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}