CVE-2026-106039: Missing Authorization in kvcache-ai Mooncake
Description
Mooncake Store master through 0.3.13.post1 contains a missing authorization vulnerability that allows unauthenticated attackers to create, steal, and falsely complete replication tasks via the coro_rpc port. Attackers can invoke CreateCopyTask, CreateMoveTask, FetchTasks, and MarkTaskToComplete with victim client UUIDs disclosed by QueryTask to hijack task queues and record replication that never occurred.
CVSS v4.0
Score 6.9medium
Affected software
kvcache-ai
Mooncake
pkg:github/kvcache-ai/MooncakeRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-106039 describes a missing authorization vulnerability in kvcache-ai Mooncake Store versions up to 0.3.13.post1. This flaw allows unauthenticated attackers to invoke replication task-related functions (CreateCopyTask, CreateMoveTask, FetchTasks, MarkTaskToComplete) through the coro_rpc port using victim client UUIDs obtained from QueryTask. The vulnerability enables attackers to hijack task queues and falsely record replication activities without proper authorization.
Potential Impact
The vulnerability allows unauthenticated attackers to manipulate replication tasks, potentially leading to unauthorized creation, theft, and false completion of replication jobs. This can disrupt data replication integrity and cause inaccurate replication records, impacting system reliability and trustworthiness.
Mitigation Recommendations
No patch or official fix information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the coro_rpc port to trusted entities only to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-06T13:53:17.708Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac5036b2cdf04f656b8254f
Added to database: 10/06/2026, 14:19:23 UTC
Last enriched: 10/06/2026, 14:33:39 UTC
Last updated: 10/06/2026, 18:57:28 UTC
Views: 13
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