kvcache-ai mooncake MountSegment Request Processing segment.cpp access control (CVE-2026-96763) | HOL Guard CVE

Medium · CVSS 5.3CVE-2026-96763

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

Answer in brief

CVE-2026-96763 records a Medium severity (CVSS 5.3) vulnerability in kvcache-ai mooncake MountSegment Request Processing segment.cpp access control. The current sources do not mark it as known exploited. The current feed maps kvcache-ai/mooncake (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 24, 2026Updated Sep 24, 2026Source checked Sep 24, 2026First seen by HOL Sep 24, 2026Material review Sep 24, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps kvcache-ai/mooncake (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
kvcache-ai/mooncakegeneric	0.3.0 \|\| 0.3.1 \|\| 0.3.2 \|\| 0.3.3 \|\| 0.3.4 \|\| 0.3.5 \|\| 0.3.6 \|\| 0.3.7 \|\| 0.3.8 \|\| 0.3.9 \|\| 0.3.10 \|\| 0.3.11 \|\| 0.3.12 \|\| 0.3.13.post1 \|\| 0.3.14-rc1	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for kvcache-ai/mooncake.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 24, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.