PYSEC-2026-1283
Python Cryptography package vulnerable to Bleichenbacher timing oracle attack
At a glance
- Published
- Updated
- CVE
- CVE-2023-50782
- Aliases
- GHSA-3ww4-gg4f-jr7f
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS_V4
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Description
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.
Affected packages
| Package | Versions |
|---|---|
| PyPI · cryptography | introduced 0, fixed 42.0.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2023-50782 ADVISORY
- https://github.com/pyca/cryptography/issues/9785 WEB
- https://access.redhat.com/security/cve/CVE-2023-50782 WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=2254432 WEB
- https://github.com/pyca/cryptography PACKAGE
- https://www.couchbase.com/alerts WEB
- https://pypi.org/project/cryptography PACKAGE
- https://github.com/advisories/GHSA-3ww4-gg4f-jr7f ADVISORY
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — PyPA Advisory Database |