A security flaw has been discovered in kvcache-ai mooncake up to 0.3.12/0.3.13.post1/0.3.14-rc1. This issue affects the function ScopedSegmentAccess::MountSegment of the file segment.cpp of the component MountSegment Request Processing. Performing a manipulation results in improper access controls. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

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 Low

Availability Impact Low

User Interaction Required

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact Low

User Interaction Required

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Kvcache-ai
  • Mooncake

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References
Link Providers
https://gist.github.com/yyymk/fea24846dc31042cb472d7bd496a8438 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-96763 cve-icon cve-icon
https://vuldb.com/submit/904605 cve-icon cve-icon
https://vuldb.com/vuln/409018 cve-icon cve-icon
https://vuldb.com/vuln/409018/cti cve-icon cve-icon
History

Tue, 29 Sep 2026 03:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 24 Sep 2026 00:30:00 +0000

Type Values Removed Values Added
Description A security flaw has been discovered in kvcache-ai mooncake up to 0.3.12/0.3.13.post1/0.3.14-rc1. This issue affects the function ScopedSegmentAccess::MountSegment of the file segment.cpp of the component MountSegment Request Processing. Performing a manipulation results in improper access controls. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Title kvcache-ai mooncake MountSegment Request Processing segment.cpp access control
First Time appeared Kvcache-ai
Kvcache-ai mooncake
Weaknesses CWE-266
CWE-284
CPEs cpe:2.3:a:kvcache-ai:mooncake:*:*:*:*:*:*:*:*
Vendors & Products Kvcache-ai
Kvcache-ai mooncake
References
Metrics cvssV2_0

{'score': 6.4, 'vector': 'AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.4, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-09-24T00:00:16.519Z

Updated: 2026-09-29T02:41:22.511Z

Reserved: 2026-09-23T16:01:21.340Z

Link: CVE-2026-96763

cve-icon Vulnrichment

Updated: 2026-09-29T02:41:18.429Z

cve-icon NVD

Status : Deferred

Published: 2026-09-24T01:16:59.627

Modified: 2026-09-29T03:17:22.323

Link: CVE-2026-96763

cve-icon Redhat

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