CVE-2026-96763CWE-266CWE-284broken-access-control

CVE-2026-96763

Medium · published September 24, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
15.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
CVSS v4.0
5.3 · 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
EPSS
0.00247 · 15.1th percentile
Weaknesses
CWE-266 · Incorrect Privilege Assignment; CWE-284 · Improper Access Control
Published
2026-09-24T05:16Z
References (5)
https://gist.github.com/yyymk/fea24846dc31042cb472d7bd496a8438 · [email protected]https://vuldb.com/cve/CVE-2026-96763 · [email protected]https://vuldb.com/submit/904605 · [email protected]https://vuldb.com/vuln/409018 · [email protected]https://vuldb.com/vuln/409018/cti · [email protected]
EPSS history
Timeline
  • 24 SEP 00:00Z
    kvcache-ai mooncake MountSegment Request Processing segment.cpp access control
    cvelistv5