6.4
MEDIUM CVSS 2.0
CVE-2026-96763
kvcache-ai mooncake MountSegment Request Processing segment.cpp access control
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.

INFO

Published Date :

Sept. 24, 2026, 1:16 a.m.

Last Modified :

Sept. 24, 2026, 1:16 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-96763 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Kvcache-ai mooncake
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
CVSS 4.0 LOW [email protected]
Solution
Address improper access controls in ScopedSegmentAccess::MountSegment function.
  • Update kvcache-ai mooncake to a patched version.
  • Review access control mechanisms in segment.cpp.
  • Implement stricter access checks.
  • Monitor for unauthorized access attempts.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-96763.

URL Resource
https://gist.github.com/yyymk/fea24846dc31042cb472d7bd496a8438
https://vuldb.com/cve/CVE-2026-96763
https://vuldb.com/submit/904605
https://vuldb.com/vuln/409018
https://vuldb.com/vuln/409018/cti
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-96763 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-96763 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-96763 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Sep. 24, 2026

    Action Type Old Value New Value
    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.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
    Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:P/A:P)
    Added CWE CWE-284
    Added CWE CWE-266
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/96xxx/CVE-2026-96763.json">CVE-2026-96763</a>
    Added Reference https://gist.github.com/yyymk/fea24846dc31042cb472d7bd496a8438
    Added Reference https://vuldb.com/cve/CVE-2026-96763
    Added Reference https://vuldb.com/submit/904605
    Added Reference https://vuldb.com/vuln/409018
    Added Reference https://vuldb.com/vuln/409018/cti
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.