Mooncake transfer engine through 0.3.13.post1 contains a memory exhaustion vulnerability in TransferMetadata::receivePeerNotify that allows unauthenticated attackers to grow process memory without limit. Attackers can repeatedly send notify frames up to 1 MB to the handshake RPC port, filling the uncapped notifys vector until the out-of-memory killer terminates the engine.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
kvcache-ai Mooncake unaffected
Version Status Constraints
0 affected ≤ 0.3.13.post1

No data.

No data.

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Vendors Products
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Project Subscriptions

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Mooncake Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/kvcache-ai/Mooncake cve-icon cve-icon
https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-transfer-engine/src/transfer_metadata.cpp#L285-L296 cve-icon cve-icon
https://github.com/kvcache-ai/Mooncake/issues/4445 cve-icon cve-icon
https://www.vulncheck.com/advisories/mooncake-transfer-engine-through-0.3.13-post1-memory-exhaustion-via-unbounded-notify-queue cve-icon cve-icon
History

Fri, 02 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
First Time appeared Kvcache-ai
Kvcache-ai mooncake
Vendors & Products Kvcache-ai
Kvcache-ai mooncake

Thu, 01 Oct 2026 23:00:00 +0000

Type Values Removed Values Added
Description Mooncake transfer engine through 0.3.13.post1 contains a memory exhaustion vulnerability in TransferMetadata::receivePeerNotify that allows unauthenticated attackers to grow process memory without limit. Attackers can repeatedly send notify frames up to 1 MB to the handshake RPC port, filling the uncapped notifys vector until the out-of-memory killer terminates the engine.
Title Mooncake transfer engine through 0.3.13.post1 Memory Exhaustion via Unbounded Notify Queue
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-01T22:53:06.016Z

Reserved: 2026-10-01T10:39:47.845Z

Link: CVE-2026-103761

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-01T23:16:46.987

Modified: 2026-10-01T23:16:46.987

Link: CVE-2026-103761

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-02T00:30:16Z

Weaknesses