CVE-2026-96762 kvcache-ai mooncake RPC Path UnmountSegment authorization

Medium 6.9 Published Updated

Attackers can bypass authorization in the Mooncake RPC UnmountSegment function by manipulating client and segment IDs, potentially disrupting cache operations.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-96762?

CVE-2026-96762 is a medium-severity missing authorization vulnerability in kvcache-ai mooncake, published on 23 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability was determined in kvcache-ai mooncake up to 0.3.12/0.3.13.post1. This affects the function UnmountSegment of the component RPC Path Handler. This manipulation of the argument client_id/segment_id causes authorization bypass. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-639, CWE-285

Which versions are affected by CVE-2026-96762?

How do I fix CVE-2026-96762?

No fix has been published for CVE-2026-96762 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-96762 being exploited?

There is no known exploitation of CVE-2026-96762 in the wild and no public exploit code.

Sources

Also known as GHSA-5j6m-8f83-35hj.

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