CVE-2026-85522valkey-io valkey Slot Migration cluster_migrateslots.c createSlotImportJob out-of-bounds

Description

A vulnerability was detected in valkey-io valkey up to 9.5.4/9.1.0. Affected by this vulnerability is the function createSlotImportJob of the file src/cluster_migrateslots.c of the component Slot Migration. The manipulation of the argument job_name results in out-of-bounds read. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version 9.0.5 and 9.1.1 addresses this issue. The patch is identified as f4dc3ca09eb650c2fe14060090a41c524eca803f. Upgrading the affected component is advised.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• VDB-398707 | valkey-io valkey Slot Migration cluster_migrateslots.c createSlotImportJob out-of-bounds vdb-entrytechnical-description
• VDB-398707 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-required
• CVE-2026-85522 | CVE Analysis and Report third-party-advisory
• Submit #895119 | Valkey Project Valkey 9.1.0 Out-of-bounds Read third-party-advisory
• https://github.com/valkey-io/valkey/issues/4207 exploitissue-tracking
• https://github.com/valkey-io/valkey/pull/4210 issue-trackingpatch
• https://github.com/valkey-io/valkey/commit/f4dc3ca09eb650c2fe14060090a41c524eca803f patch
• https://github.com/valkey-io/valkey/releases/tag/9.1.1 patch
• https://github.com/valkey-io/valkey/ product