CVE-2023-28858

Name: CVE-2023-28858
Creator: NVD / NIST
Published: 2023-03-26T19:15:06.78+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.7/10EPSS 1.02%

Last modified Jun 17, 2026

CVE-2023-28858 is a low-severity vulnerability rated 3.7/10 on the CVSS scale. redis-py before 4.5.3 leaves a connection open after canceling an async Redis command at an inopportune time, and can send response data to the client of an unrelated request in an off-by-one manner. NOTE: this CVE Record was initially created in response to reports about ChatGPT, and 4.3.6, 4.4.3, and 4.5.3 were released (changing the behavior for pipeline operations); however, please see CVE-2023-28859 about addressing data leakage across AsyncIO connections in general.. EPSS estimates a 1.02% chance of exploitation in the next 30 days.

Description

redis-py before 4.5.3 leaves a connection open after canceling an async Redis command at an inopportune time, and can send response data to the client of an unrelated request in an off-by-one manner. NOTE: this CVE Record was initially created in response to reports about ChatGPT, and 4.3.6, 4.4.3, and 4.5.3 were released (changing the behavior for pipeline operations); however, please see CVE-2023-28859 about addressing data leakage across AsyncIO connections in general.

Metrics

CVSS 3.1

3.7/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

1.02%

58.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-193

Affected Software

Vendor	Product	Versions
Redis	Redis-Py	>= 4.2.0, < 4.3.6
Redis	Redis-Py	>= 4.4.0, < 4.4.3
Redis	Redis-Py	>= 4.5.0, < 4.5.3

References

https://github.com/redis/redis-py/compare/v4.3.5...v4.3.6Patch
https://github.com/redis/redis-py/compare/v4.4.2...v4.4.3Patch
https://github.com/redis/redis-py/compare/v4.5.2...v4.5.3Patch
https://github.com/redis/redis-py/issues/2624Issue Tracking
https://github.com/redis/redis-py/pull/2641Issue Tracking, Patch
https://openai.com/blog/march-20-chatgpt-outageThird Party Advisory
https://github.com/redis/redis-py/compare/v4.3.5...v4.3.6Patch
https://github.com/redis/redis-py/compare/v4.4.2...v4.4.3Patch
https://github.com/redis/redis-py/compare/v4.5.2...v4.5.3Patch
https://github.com/redis/redis-py/issues/2624Issue Tracking
https://github.com/redis/redis-py/pull/2641Issue Tracking, Patch
https://openai.com/blog/march-20-chatgpt-outageThird Party Advisory

Timeline

Published: Mar 26, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-28858?

How severe is CVE-2023-28858?

CVE-2023-28858 has a CVSS score of 3.7/10 (LOW severity). The EPSS model estimates a 1.02% probability of exploitation in the next 30 days.

How do I fix CVE-2023-28858?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-28858?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST