CVEvulnerability
CVE-2026-103764
9.3 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2026-10-02
- Last modified
- 2026-10-02
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 9.3 CRITICAL — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-822
Description
Mooncake transfer engine before 0.3.13 contains an untrusted pointer dereference in ServerSession::readHeader that allows unauthenticated attackers to read and write arbitrary process memory via the TCP transport data port. Attackers can send a crafted SessionHeader with arbitrary addr and size values using READ or WRITE opcodes to disclose KV cache contents, prompts and secrets or corrupt memory toward code execution.
Related
Weakness · CWE (1)
- CWE-822 Untrusted Pointer Dereference weakness
References
- https://github.com/kvcache-ai/Mooncake github.com
- https://github.com/kvcache-ai/Mooncake/blob/6041a609a8c3af35e778f70db344f145c2914980/mooncake-transfer-engine/src/transport/tcp_transport/tcp_transport.cpp#L209 github.com
- https://github.com/kvcache-ai/Mooncake/commit/a2933849417259e562fc9cbad63c618d464dfb2d github.com
- https://github.com/kvcache-ai/Mooncake/issues/4441 github.com
- https://github.com/kvcache-ai/Mooncake/releases/tag/v0.3.13 github.com
- https://www.vulncheck.com/advisories/mooncake-transfer-engine-before-0.3.13-unauthenticated-arbitrary-memory-read-write-via-tcp-transport www.vulncheck.com
- https://github.com/kvcache-ai/Mooncake/issues/4441 github.com