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CVE-2026-96763— kvcache-ai mooncake MountSegment Request Processing segment.cpp access control

Quick assessment

Affected
kvcache-ai mooncake
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 kvcache-ai mooncake 的最高至 0.3.12/0.3.13.post1/0.3.14-rc1 版本中发现了一个安全漏洞。该问题影响的是组件 "MountSegment 请求处理" 中的 segment.cpp 文件的 ScopedSegmentAccess::MountSegment 函数。该漏洞允许不当的访问控制，攻击者可以利用此漏洞进行恶意操作。该漏洞可以通过网络远程利用，并且已有公开的利用代码，可能被攻击者用于实际攻击。供应商早在披露前就已收到通知，但至今未做出任何回应。

CVSS 5.4 · Medium EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 15

VendorProduct Version RangeStatus
kvcache-ai mooncake 0.3.0 affected
0.3.1 affected
0.3.2 affected
0.3.3 affected
0.3.4 affected
0.3.5 affected
0.3.6 affected
0.3.7 affected
… +7 more rows
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I. Basic Information for CVE-2026-96763

Vulnerability Information
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Vulnerability Title
kvcache-ai mooncake MountSegment Request Processing segment.cpp access control
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
kvcache-ai mooncake 0.3.0 cpe:2.3:a:kvcache-ai:mooncake:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-96763

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III. Intelligence Information for CVE-2026-96763

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Proof of Concept for CVE-2026-96763 (1)

IV. Related Vulnerabilities

Same product: mooncake
Same vendor: kvcache-ai
Same weakness: CWE-284

V. Comments for CVE-2026-96763

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