{"id":"CVE-2023-28858","aliases":["GHSA-24wv-mv5m-xv4h","PYSEC-2023-45"],"url":"https://o3.security/vulnerability/CVE-2023-28858","summary":"redis-py Race Condition vulnerability","details":"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.","published":"2023-03-26T00:00:00Z","modified":"2026-08-12T03:51:29.868526602Z","cvss":{"score":3.7,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"redis","fixedVersion":"4.4.3"},{"ecosystem":"PyPI","name":"redis","fixedVersion":"4.5.3"},{"ecosystem":"PyPI","name":"redis","fixedVersion":"4.3.6"}],"fix":{"url":"https://github.com/redis/redis-py/pull/2641","label":"redis/redis-py#2641"},"references":[{"type":"WEB","url":"https://github.com/redis/redis-py/compare/v4.3.5...v4.3.6"},{"type":"WEB","url":"https://github.com/redis/redis-py/compare/v4.4.2...v4.4.3"},{"type":"WEB","url":"https://github.com/redis/redis-py/compare/v4.5.2...v4.5.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28858.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28858"},{"type":"REPORT","url":"https://github.com/redis/redis-py/issues/2624"},{"type":"FIX","url":"https://github.com/redis/redis-py/pull/2641"},{"type":"ARTICLE","url":"https://openai.com/blog/march-20-chatgpt-outage"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:29.868526602Z"}}