{"id":"CVE-2026-56684","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-56684","summary":"Valkey is a distributed key-value database. Prior to 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1, Valkey's tlsProcessPendingData function iterates pending_list while an authenticated client…","details":"Valkey is a distributed key-value database. Prior to 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1, Valkey's tlsProcessPendingData function iterates pending_list while an authenticated client can trigger CLIENT KILL, causing connTLSClose to delete the iterator's cached next node and producing a use-after-free that can crash the server or potentially allow remote code execution when TLS is enabled. This issue is fixed in versions 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1.","published":"2026-08-18T15:16:55.463","modified":"2026-08-18T15:16:55.463","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/valkey-io/valkey/commit/7cd5bcb7575d750ec2de618db80da58680a10fe3","label":"valkey-io/valkey@7cd5bcb"},"references":[{"type":"WEB","url":"https://github.com/valkey-io/valkey/commit/7cd5bcb7575d750ec2de618db80da58680a10fe3"},{"type":"WEB","url":"https://github.com/valkey-io/valkey/pull/4234"},{"type":"WEB","url":"https://github.com/valkey-io/valkey/releases/tag/7.2.14"},{"type":"WEB","url":"https://github.com/valkey-io/valkey/releases/tag/8.0.10"},{"type":"WEB","url":"https://github.com/valkey-io/valkey/releases/tag/8.1.9"},{"type":"WEB","url":"https://github.com/valkey-io/valkey/releases/tag/9.0.5"},{"type":"WEB","url":"https://github.com/valkey-io/valkey/releases/tag/9.1.1"},{"type":"WEB","url":"https://github.com/valkey-io/valkey/security/advisories/GHSA-53mc-f3m3-99vh"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T15:16:55.463"}}