Is CVE-2026-107183 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-107183?

CVE-2026-107183 has a CVSS v3 severity of HIGH (8.1).

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CVE-2026-107183

Description

llama.cpp before b11393 contains a use-after-free and double free vulnerability in common_chat_peg_mapper::map that allows unauthenticated remote attackers to corrupt heap memory via a dangling current_tool pointer. Attackers can submit a chat_parser in a POST /completion request emitting a tool-id after a tool-close tag to crash llama-server and shape a heap write primitive.