CVE-2026-96762

kvcache-ai mooncake RPC Path UnmountSegment authorization

State: Published
Severity: 6.9 Medium
Published: Sep 23, 2026
Updated: Sep 24, 2026
Reserved: Sep 23, 2026

Description

A vulnerability was determined in kvcache-ai mooncake up to 0.3.12/0.3.13.post1. This affects the function UnmountSegment of the component RPC Path Handler. This manipulation of the argument client_id/segment_id causes authorization bypass. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	7.3 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
3.0	7.3 High	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
2.0	7.5 High	AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-639 Authorization Bypass
CWE-285 Improper Authorization

Affected Products

Product	Versions
mooncakekvcache-ai	0.3.0Affected 0.3.1Affected 0.3.2Affected 0.3.3Affected 0.3.4Affected 0.3.5Affected 0.3.6Affected 0.3.7Affected 0.3.8Affected 0.3.9Affected 0.3.10Affected 0.3.11Affected 0.3.12Affected 0.3.13.post1Affected

References

VDB-409016 | kvcache-ai mooncake RPC Path UnmountSegment authorizationvdb-entrytechnical-description
VDB-409016 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
CVE-2026-96762 | CVE Analysis and Reportthird-party-advisory
Submit #904600 | kvcache-ai Mooncake >= 0.3.4, <= 0.3.12 Authorization Bypassthird-party-advisory
https://gist.github.com/yyymk/76d099537af0e661dd01eacc82b9a7eaexploit

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