What’s Vulnerable › Vulnerabilities

CVE-2026-96763: kvcache-ai mooncake MountSegment Request Processing segment.cpp access control

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-24 · updated 2026-09-29
• Weakness: CWE-266

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.

Affected products

• kvcache-ai Mooncake: 0.3.0, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5 (+9)

References

• 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

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