Authorization Bypass in kvcache-ai Mooncake RPC Path Handler
CVE-2026-96762

6.9MEDIUM

Key Information:

Vendor

Kvcache-ai

Status
Mooncake
Vendor
CVE Published:
23 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-96762?

A vulnerability has been identified in the kvcache-ai Mooncake product affecting versions up to 0.3.12 and 0.3.13.post1. This flaw exists within the UnmountSegment function of the RPC Path Handler, where improper handling of the client_id and segment_id arguments leads to potential authorization bypass. The vulnerability can be exploited remotely, which raises concerns about the security integrity of the affected systems. Despite prior notification of the issue, the vendor has not responded to address the exploit that has already been publicly disclosed.

Affected Version(s)

mooncake 0.3.0

mooncake 0.3.1

mooncake 0.3.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-96762 - Proof of Concept

References

https://vuldb.com/vuln/409016
vdb-entrytechnical-description
https://vuldb.com/vuln/409016/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-96762
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

YYYMK (VulDB User)
VulDB CNA Team
.