CVE-2026-107183: Use After Free in ggml-org llama.cpp
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.
CVSS v4.0
Score 9.2critical
Affected software
ggml-org
llama.cpp
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-07T13:04:03.727Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac64de02cdf04f656537fe5
Added to database: 10/07/2026, 13:49:20 UTC
Last updated: 10/07/2026, 13:49:20 UTC
Views: 1
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