valkey-io valkey Slot Migration cluster_migrateslots.c createSlotImportJob out-of-bounds (CVE-2026-85522) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-85522

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

Answer in brief

CVE-2026-85522 records a Unknown severity vulnerability in valkey-io valkey Slot Migration cluster_migrateslots.c createSlotImportJob out-of-bounds. The current sources do not mark it as known exploited. The current feed maps valkey-io/valkey (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 4, 2026Updated Sep 4, 2026Source checked Sep 4, 2026First seen by HOL Sep 4, 2026Material review Sep 4, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps valkey-io/valkey (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
valkey-io/valkeygeneric	9.0 \|\| 9.1.0 \|\| 9.5.0 \|\| 9.5.1 \|\| 9.5.2 \|\| 9.5.3 \|\| 9.5.4	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for valkey-io/valkey.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 4, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.