From: carnil@debian.org   
      
   Source: llama.cpp   
   Version: 8064+dfsg-1   
   Severity: important   
   Tags: security upstream   
   Forwarded: https://github.com/ggml-org/llama.cpp/issues/18988   
   X-Debbugs-Cc: carnil@debian.org, Debian Security Team    
      
   Hi,   
      
   The following vulnerability was published for llama.cpp.   
      
   CVE-2026-2069[0]:   
   | A flaw has been found in ggml-org llama.cpp up to 55abc39. Impacted   
   | is the function llama_grammar_advance_stack of the file   
   | llama.cpp/src/llama-grammar.cpp of the component GBNF Grammar   
   | Handler. This manipulation causes stack-based buffer overflow. The   
   | attack needs to be launched locally. The exploit has been published   
   | and may be used. Patch name: 18993. To fix this issue, it is   
   | recommended to deploy a patch.   
      
      
   If you fix the vulnerability please also make sure to include the   
   CVE (Common Vulnerabilities & Exposures) id in your changelog entry.   
      
   For further information see:   
      
   [0] https://security-tracker.debian.org/tracker/CVE-2026-2069   
       https://www.cve.org/CVERecord?id=CVE-2026-2069   
   [1] https://github.com/ggml-org/llama.cpp/issues/18988   
   [2] https://github.com/ggml-org/llama.cpp/pull/18993   
      
   Regards,   
   Salvatore   
      
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