valkey-io valkey up to 9.5.4/9.1.0 Slot Migration cluster_migrateslots.c createSlotImportJob job_name out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k1.82+

Summaryinfo

A vulnerability, which was classified as problematic, has been found in valkey-io valkey up to 9.5.4/9.1.0. Affected by this issue is the function createSlotImportJob of the file src/cluster_migrateslots.c of the component Slot Migration. This manipulation of the argument job_name causes out-of-bounds. This vulnerability is tracked as CVE-2026-85522. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in valkey-io valkey up to 9.5.4/9.1.0. It has been declared as problematic. 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 with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-85522. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

Upgrading to version 9.0.5 or 9.1.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch f4dc3ca09eb650c2fe14060090a41c524eca803f is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: valkey 9.0.5/9.1.1
Patch: f4dc3ca09eb650c2fe14060090a41c524eca803f

Timelineinfo

09/04/2026 Advisory disclosed
09/04/2026 +0 days VulDB entry created
09/04/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 4207
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-85522 (🔒)
GCVE (CVE): GCVE-0-2026-85522
GCVE (VulDB): GCVE-100-398707
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/04/2026 10:02
Changes: 09/04/2026 10:02 (64)
Complete: 🔍
Submitter: VULL
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #895119: Valkey Project Valkey 9.1.0 Out-of-bounds Read (by VULL)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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