Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-86227— valkey-io valkey kvstore.c kvstoreGetHashtable 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.

在 valkey-io valkey 9.0.5/9.1.1 及更早版本中已发现一个弱点。该问题影响 文件中的 函数。对参数 的操作会导致越界读取（out-of-bounds read）。 攻击可以远程发起，但攻击复杂度较高，且利用难度较大。相关漏洞的利用代码已公开，可能被用于攻击。补丁编号：4691888e7fab3df128f0bde5750c9fde2ae552fa。为解决此问题，建议部署相应补丁。 利用该漏洞需要满足以下条件：集群模式 + 启动时攻击者可控的 文件（需具备 data-dir 写权限、复制流或

CVSS 3.1 · Low

Possible ATT&CK Techniques 1 AI

T1531 · Account Access Removal
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-86227

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
valkey-io valkey kvstore.c kvstoreGetHashtable out-of-bounds
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in valkey-io valkey up to 9.0.5/9.1.1. This affects the function kvstoreGetHashtable of the file src/kvstore.c. This manipulation of the argument didx causes out-of-bounds read. It is possible to initiate the attack remotely. The attack is considered to have high complexity. It is indicated that the exploitability is difficult. The exploit has been made available to the public and could be used for attacks. Patch name: 4691888e7fab3df128f0bde5750c9fde2ae552fa. To fix this issue, it is recommended to deploy a patch. Exploitation requires cluster mode plus attacker-controlled dump.rdb at startup (data-dir write access, replication feed, or a stored crafted RDB) - an attacker-position DoS at boot, not network pre-auth. The issue report was closed stating it "is worth fixing for the sake of memory safety… but I don't think it meets our bar for a security disclosure."
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/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

Affected Products

Vendor Product Affected Versions CPE Subscribe
valkey-io valkey 9.0.0 cpe:2.3:a:valkey-io:valkey:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-86227

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-86227

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-86227 (2)

Vendor Advisories for CVE-2026-86227 (1)

Proof of Concept for CVE-2026-86227 (1)

Other References for CVE-2026-86227 (3)

Other References for CVE-2026-86227 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-86227

No comments yet

Leave a comment