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…
CVE-2023-28858
redis-py before 4.5.3, as used in ChatGPT and other products, leaves a connection open after canceling an async Redis command at an inopportune time (in the case of a pipeline operation), and can send response data to the client of an unrelated request in an off-by-one manner. The fixed versions for this CVE Record are 4.3.6, 4.4.3, and 4.5.3, but [are believed to be incomplete](https://github.com/redis/redis-py/issues/2665). CVE-2023-28859 has been assigned the issues caused by the incomplete fixes.
Assessment
- CVSS
- 6.3 (v4.0)
- Severity
- Medium
- EPSS
- 1.02% chance of exploitation in the next 30 days
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 26 March 2023
- Last updated
- 17 June 2026
- Weakness
- CWE-193
- Assigner
- cve@mitre.org
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
At the source
References
- https://github.com/redis/redis-py/compare/v4.3.5...v4.3.6
- https://github.com/redis/redis-py/compare/v4.4.2...v4.4.3
- https://github.com/redis/redis-py/compare/v4.5.2...v4.5.3
- https://github.com/redis/redis-py/issues/2624
- https://github.com/redis/redis-py/pull/2641
- https://openai.com/blog/march-20-chatgpt-outage
- https://nvd.nist.gov/vuln/detail/CVE-2023-28858
- https://github.com/redis/redis-py/releases/tag/v4.4.4
- https://github.com/redis/redis-py/releases/tag/v4.5.4
- https://github.com/redis/redis-py/commit/d56baeb683fc1935cfa343fa2eeb0fa9bd955283
- https://github.com/pypa/advisory-database/tree/main/vulns/redis/PYSEC-2023-45.yaml
- https://github.com/advisories/GHSA-24wv-mv5m-xv4h
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