Description
An issue in Python cpython v.3.7 allows an attacker to obtain sensitive information via the _asyncio._swap_current_task component. NOTE: this is disputed by the vendor because (1) neither 3.7 nor any other release is affected (it is a bug in some 3.12 pre-releases); (2) there are no common scenarios in which an adversary can call _asyncio._swap_current_task but does not already have the ability to call arbitrary functions; and (3) there are no common scenarios in which sensitive information, which is not already accessible to an adversary, becomes accessible through this bug.
References (1)
Core 1
Core References
Exploit, Issue Tracking, Patch
https://github.com/python/cpython/issues/105987
Scores
CVSS v3
5.3
EPSS
0.0038
EPSS Percentile
59.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
Status
published
Products (1)
python/python
3.13.0 alpha0
Published
Aug 15, 2023
Tracked Since
Feb 18, 2026