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

Quick assessment

Affected
valkey-io valkey
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Valkey是Valkey组织开源的一个灵活的分布式键值数据库。 Valkey 9.5.4及之前版本和9.1.0及之前版本存在缓冲区错误漏洞，该漏洞源于Slot Migration组件中src/cluster_migrateslots.c文件的createSlotImportJob函数对job_name参数操作不当，可能导致越界读取。

CVSS 5.3 · Medium EPSS 0.86% · P58

Affected Version Matrix 9

VendorProduct Version RangeStatus
valkey-io valkey 9.0 affected
9.1.0 affected
9.5.0 affected
9.5.1 affected
9.5.2 affected
9.5.3 affected
9.5.4 affected
9.0.5 unaffected
… +1 more rows
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I. Basic Information for CVE-2026-85522

Vulnerability Information
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Vulnerability Title
valkey-io valkey Slot Migration cluster_migrateslots.c createSlotImportJob out-of-bounds
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Valkey 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Valkey是Valkey组织开源的一个灵活的分布式键值数据库。 Valkey 9.5.4及之前版本和9.1.0及之前版本存在缓冲区错误漏洞，该漏洞源于Slot Migration组件中src/cluster_migrateslots.c文件的createSlotImportJob函数对job_name参数操作不当，可能导致越界读取。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
valkey-io valkey 9.0 cpe:2.3:a:valkey-io:valkey:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-85522

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III. Intelligence Information for CVE-2026-85522

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Patches & Fixes for CVE-2026-85522 (2)

Vendor Advisories for CVE-2026-85522 (1)

Security Blog Posts for CVE-2026-85522 (1)

Vendor Pages for CVE-2026-85522 (1)

Other References for CVE-2026-85522 (3)

IV. Related Vulnerabilities

Same product: valkey
Same vendor: valkey-io
Same weakness: CWE-125