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.
Published: 2026-10-06
Score: 6.9 Medium
EPSS: n/a
KEV: No
Impact: Unauthenticated replication abuse
Action: Apply Patch
AI Analysis

Impact

Mooncake Store master through version 0.3.13.post1 has a missing authorization flaw that allows attackers without credentials to call RPC methods on the coro_rpc port. By invoking CreateCopyTask, CreateMoveTask, FetchTasks, and MarkTaskToComplete, an adversary can create new replication tasks, steal existing ones, or falsely mark tasks as completed. The vulnerability enables the attacker to hijack replication queues and record replication that never occurred, compromising data integrity.

Affected Systems

The affected system is Mooncake Store by kvcache-ai. All releases up to and including 0.3.13.post1 are impacted. Users running these versions should verify their deployment against the identified code paths.

Risk and Exploitability

The CVSS score of 6.9 indicates moderate severity. EPSS data is not available and the vulnerability is not listed in the CISA KEV catalog. Attackers can exploit the flaw remotely through the exposed RPC interface, assuming network connectivity to the coro_rpc port. The lack of authentication checks makes exploitation straightforward for any host that can reach this port.

Generated by OpenCVE AI on October 6, 2026 at 18:15 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade Mooncake Store to version 0.3.13.post2 or later where the authorization check is fixed
  • Restrict network access to the coro_rpc port using firewall rules or a VPN so only trusted hosts can reach the service
  • Configure monitoring to detect abnormal replication task creation or completion patterns

Generated by OpenCVE AI on October 6, 2026 at 18:15 UTC.

Tracking

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Advisories

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History

Tue, 06 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 06 Oct 2026 14:15:00 +0000

Type Values Removed Values Added
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.
Title Mooncake Store through 0.3.13.post1 Missing Authorization in Replication Task RPC
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-06T15:37:52.711Z

Reserved: 2026-10-06T13:53:17.708Z

Link: CVE-2026-106039

cve-icon Vulnrichment

Updated: 2026-10-06T15:36:10.539Z

cve-icon NVD

Status : Deferred

Published: 2026-10-06T14:17:43.660

Modified: 2026-10-06T16:17:07.017

Link: CVE-2026-106039

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-06T18:30:05Z

Weaknesses