redis-py through 4.5.3 and 4.4.3 leaves a connection open after canceling an async Redis command at an inopportune time (in the case of a non-pipeline operation), and can send response data to the client of an unrelated request. NOTE: this issue exists because of an incomplete fix for CVE-2023-28858.
// cvss v3.1 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Checked 2026-11-07 at 17:04 UTC. The most recent advisory here was published 2023-03-26. Updated continuously from NVD, GHSA, OSV and CNA feeds.