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CVE-2023-50782

Python-cryptography: bleichenbacher timing oracle attack against rsa decryption - incomplete fix for cve-2020-25659

Published: Feb 5, 2024Updated: Feb 25, 2026 Sources: CVE List NVD GHSA BDUCWE-385
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.1%
Top 38.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-385CWE-203

Affected Products

ansible automation platformredhat
On-premDev Tool
DevTools & CI / ci-cd
enterprise linuxredhat
On-premOS
Operating Systems / linux-distro
update infrastructureredhat
On-prem
Operating Systems / linux-distro
cryptographycryptography.io
Library
OSS Libraries / pypi
couchbase servercouchbase
On-premDatabase
Databases / nosql
redhatcommercialUSOperating Systemsaka red hat
cryptography.iooss-projectOSS Librariesaka cryptography
couchbasecommercialUSDatabasesaka couchbase server, sync gateway, bleve
and 12 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Discovery
View detailed technique mapping

References

https://access.redhat.com/security/cve/CVE-2023-50782
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2254432
bugzilla.redhat.com
https://www.couchbase.com/alerts/
couchbase.com
and 10 more references View all →

Timeline

Published
Feb 5, 2024
Last Updated
Feb 25, 2026

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