kvcache-ai mooncake MountSegment Request Processing segment.cpp access control

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-96763
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-24 01:16:59 UTC
Updated2026-09-24 14:40:36 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 2.1 LOW from [email protected]

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/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

Problem Types: CWE-266 | CWE-284 | CWE-284 Improper Access Controls | CWE-266 Incorrect Privilege Assignment

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary2.1LOWCVSS: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/C...
4.0CNADECLARED5.3MEDIUMCVSS: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
3.1[email protected]Primary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
3.1CNADECLARED5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R
3.0CNADECLARED5.4MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R
2.0[email protected]Secondary6.4AV:N/AC:L/Au:N/C:N/I:P/A:P
2.0CNADECLARED6.4AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:UR

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Confidentiality
None
Integrity
Low
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/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

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Kvcache-ai Mooncake affected 0.3.0 Not specified
CNA Kvcache-ai Mooncake affected 0.3.1 Not specified
CNA Kvcache-ai Mooncake affected 0.3.2 Not specified
CNA Kvcache-ai Mooncake affected 0.3.3 Not specified
CNA Kvcache-ai Mooncake affected 0.3.4 Not specified
CNA Kvcache-ai Mooncake affected 0.3.5 Not specified
CNA Kvcache-ai Mooncake affected 0.3.6 Not specified
CNA Kvcache-ai Mooncake affected 0.3.7 Not specified
CNA Kvcache-ai Mooncake affected 0.3.8 Not specified
CNA Kvcache-ai Mooncake affected 0.3.9 Not specified
CNA Kvcache-ai Mooncake affected 0.3.10 Not specified
CNA Kvcache-ai Mooncake affected 0.3.11 Not specified
CNA Kvcache-ai Mooncake affected 0.3.12 Not specified
CNA Kvcache-ai Mooncake affected 0.3.13.post1 Not specified
CNA Kvcache-ai Mooncake affected 0.3.14-rc1 Not specified

References

ReferenceSourceLinkTags
vuldb.com/submit/904605 [email protected] vuldb.com
vuldb.com/vuln/409018 [email protected] vuldb.com
vuldb.com/vuln/409018/cti [email protected] vuldb.com
gist.github.com/yyymk/fea24846dc31042cb472d7bd496a8438 [email protected] gist.github.com
vuldb.com/cve/CVE-2026-96763 [email protected] vuldb.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: YYYMK (VulDB User) (en)

CNA: VulDB CNA Team (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-23T00:00:00.000ZAdvisory disclosed
CNA2026-09-23T02:00:00.000ZVulDB entry created
CNA2026-09-23T18:06:34.000ZVulDB entry last update

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