{"cve":"CVE-2023-28858","nvd":{"published":"2023-03-26T19:15:06.780","modified":"2026-06-17T05:48:55.853","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","score":3.7},"cwes":["CWE-193"],"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"],"products":["redis:redis-py"],"source":"nvd","synced_at":"2026-10-19T21:37:48.383111019+00:00"},"epss":{"cve":"CVE-2023-28858","score":0.01018,"percentile":0.63346,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-24wv-mv5m-xv4h","url":"https://osv.dev/vulnerability/GHSA-24wv-mv5m-xv4h","summary":"redis-py Race Condition vulnerability","modified":"2024-10-25T21:54:11.332865Z","packages":[{"ecosystem":"PyPI","name":"redis","purl":"pkg:pypi/redis","ranges":[">=4.4.0 <4.4.3"],"fixed":["4.4.3"]},{"ecosystem":"PyPI","name":"redis","purl":"pkg:pypi/redis","ranges":[">=4.5.0 <4.5.3"],"fixed":["4.5.3"]},{"ecosystem":"PyPI","name":"redis","purl":"pkg:pypi/redis","ranges":[">=4.2.0 <4.3.6"],"fixed":["4.3.6"]}]},{"id":"PYSEC-2023-45","url":"https://osv.dev/vulnerability/PYSEC-2023-45","summary":"","modified":"2026-06-10T17:02:35.114158126Z","packages":[{"ecosystem":"PyPI","name":"redis","purl":"pkg:pypi/redis","ranges":[">=4.2.0 <4.3.6",">=4.4.0 <4.4.3",">=4.5.0 <4.5.3"],"fixed":["4.3.6","4.4.3","4.5.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}