{"id":"CVE-2026-23479","summary":"redis-server use-after-free in unblock client flow may allow remote code execution","details":"Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flow, an authenticated attacker can trigger a use-after-free that may lead to remote code execution. This has been patched in version 8.6.3.","aliases":["BIT-keydb-2026-23479","BIT-redis-2026-23479","BIT-valkey-2026-23479","GHSA-93m2-935m-8rj3"],"modified":"2026-05-10T12:18:38.099105Z","published":"2026-05-05T16:36:05.486Z","related":["openSUSE-SU-2026:10711-1","openSUSE-SU-2026:10719-1"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-416"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23479.json"},"references":[{"type":"WEB","url":"https://github.com/redis/redis/releases/tag/8.6.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23479.json"},{"type":"ADVISORY","url":"https://github.com/redis/redis/security/advisories/GHSA-93m2-935m-8rj3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23479"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/redis/redis","events":[{"introduced":"29622276ecd7b74312798e6772744858a8a6f9bf"},{"fixed":"bd3b38d41070b478c58bc8b72d2af89cbccd1a40"}],"database_specific":{"extracted_events":[{"introduced":"7.2.0"},{"fixed":"8.6.3"}],"cpe":"cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*","source":["CPE_FIELD","REFERENCES"]}}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-23479.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}