CVE-2026-103764
published 2026-10-02CVE-2026-103764: Mooncake transfer engine before 0.3.13 contains an untrusted pointer dereference in ServerSession::readHeader that allows unauthenticated attackers to read and…
PriorityP261critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.64%
48.7th percentile
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.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| kvcache-ai | mooncake | < 0.3.13 | 0.3.13 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv4.09.3CRITICALCVSS: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
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GHSA
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 T
ghsa_unreviewed·2026-10-02
CVE-2026-103764 [CRITICAL] CWE-822 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 T
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.
VulDB
kvcache-ai Mooncake up to 0.3.12 transfer engine readHeader addr/size null pointer dereference (EUVD-2026-91136)
vuldb·2026-10-02·CVSS 9.8
CVE-2026-103764 [CRITICAL] kvcache-ai Mooncake up to 0.3.12 transfer engine readHeader addr/size null pointer dereference (EUVD-2026-91136)
A vulnerability was found in kvcache-ai Mooncake up to 0.3.12. It has been rated as critical. Affected by this issue is the function ServerSession::readHeader of the component transfer engine. The manipulation of the argument addr/size leads to null pointer dereference.
This vulnerability is listed as CVE-2026-103764. The attack may be initiated remotely. There is no available exploit.
Upgrading the affected component is advised.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/kvcache-ai/Mooncakehttps://github.com/kvcache-ai/Mooncake/blob/6041a609a8c3af35e778f70db344f145c2914980/mooncake-transfer-engine/src/transport/tcp_transport/tcp_transport.cpp#L209https://github.com/kvcache-ai/Mooncake/commit/a2933849417259e562fc9cbad63c618d464dfb2dhttps://github.com/kvcache-ai/Mooncake/issues/4441https://github.com/kvcache-ai/Mooncake/releases/tag/v0.3.13https://www.vulncheck.com/advisories/mooncake-transfer-engine-before-0.3.13-unauthenticated-arbitrary-memory-read-write-via-tcp-transporthttps://github.com/kvcache-ai/Mooncake/issues/4441
2026-10-02
Published