CVE-2026-106040: 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 erase any object's disk replica via EvictDiskReplica and BatchEvictDiskReplica. Attackers reaching the coro_rpc master port can evict DISK replicas across all tenants, deleting objects whose only remaining replica is on disk.
CVSS v4.0
Score 8.8high
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-2026-106040 describes a missing authorization vulnerability in kvcache-ai Mooncake Store master versions up to 0.3.13.post1. The flaw allows unauthenticated attackers who can access the coro_rpc master port to invoke EvictDiskReplica and BatchEvictDiskReplica functions, enabling them to evict disk replicas of objects across all tenants. This can lead to deletion of objects when their only remaining replica is stored on disk.
Potential Impact
An attacker without any authentication can delete disk replicas of objects across all tenants by exploiting the missing authorization in the coro_rpc master port. This can cause data loss for objects whose only remaining replica is on disk, potentially impacting data availability and integrity.
Mitigation Recommendations
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 master port to trusted entities only to prevent unauthorized eviction of disk replicas.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-06T13:53:18.034Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac5036b2cdf04f656b82550
Added to database: 10/06/2026, 14:19:23 UTC
Last enriched: 10/06/2026, 14:33:13 UTC
Last updated: 10/06/2026, 20:04:26 UTC
Views: 13
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