Is CVE-2026-106039 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-106039 being exploited in the wild.

How severe is CVE-2026-106039?

Medium severity, with a CVSS score of 6.5, published 6 October 2026.

Which products and versions are affected?

Kvcache-Ai Mooncake Store master through 0.3.13.post1.

Is there a fix for CVE-2026-106039?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-106039 attacked?

It is attacked over the network, in a hosted service.

Am I affected by CVE-2026-106039?

Check whether you run Kvcache-Ai Mooncake Store at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-106039: Mooncake Store missing authorization in coro_rpc port

CVE-2026-106039 · Severity: medium · CVSS 6.5 · Published 2026-10-06

Mooncake Store is a serving platform for LLM services that manages replication tasks across distributed systems. An unauthenticated attacker can exploit missing authorization checks on the coro_rpc port to create, steal, and falsely mark replication tasks as complete, allowing them to hijack task queues and falsify replication records without legitimate access credentials.

Technologies: Kvcache-Ai Mooncake Store. Vendors: Kvcache-Ai.

Quick answers

Is CVE-2026-106039 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-106039 being exploited in the wild.
How severe is CVE-2026-106039?: Medium severity, with a CVSS score of 6.5, published 6 October 2026.
Which products and versions are affected?: Kvcache-Ai Mooncake Store master through 0.3.13.post1.
Is there a fix for CVE-2026-106039?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-106039 attacked?: It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-106039?: Check whether you run Kvcache-Ai Mooncake Store at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a missing authorization check in the coro_rpc port that exposes replication task management functions (CreateCopyTask, CreateMoveTask, FetchTasks, MarkTaskToComplete) to unauthenticated network clients. Attackers can query the QueryTask function to obtain victim client UUIDs and then use those UUIDs to manipulate task queues. No authentication or access control is enforced on these RPC endpoints.

Affected products

kvcache-ai Mooncake Store master through 0.3.13.post1

Timeline

2026-10-06: disclosed

References

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