---
id: CVE-2026-103761
title: >-
  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
summary: >-
  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 not…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-770
vendor: kvcache-ai
product: Mooncake
affected:
  - Mooncake <= 0.3.13.post1
published: '2026-10-01'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T23:16:46.987'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103761'
references:
  - url: 'https://github.com/kvcache-ai/Mooncake'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-transfer-engine/src/transfer_metadata.cpp#L285-L296
    label: disclosure@vulncheck.com
  - url: 'https://github.com/kvcache-ai/Mooncake/issues/4445'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/mooncake-transfer-engine-through-0.3.13-post1-memory-exhaustion-via-unbounded-notify-queue
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-01T23:03:32.833Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.