https://github.com/AaronBallman created 
https://github.com/llvm/llvm-project/pull/149357

Libclang is a wrapper around the Clang frontend, and frontends are not 
security-sensitive components of the LLVM project. However, libclang is often 
embedded in people's downstream tools, so it's best to mention that explicitly.

>From 671e4080a5d1e4463f5f6323691411606bc1cf53 Mon Sep 17 00:00:00 2001
From: Aaron Ballman <aa...@aaronballman.com>
Date: Thu, 17 Jul 2025 12:49:39 -0400
Subject: [PATCH] [Docs] Mention security of libclang

Libclang is a wrapper around the Clang frontend, and frontends are not
security-sensitive components of the LLVM project. However, libclang is
often embedded in people's downstream tools, so it's best to mention
that explicitly.
---
 clang/docs/LibClang.rst | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/clang/docs/LibClang.rst b/clang/docs/LibClang.rst
index 6c2b11ac7fc23..e747022b9c173 100644
--- a/clang/docs/LibClang.rst
+++ b/clang/docs/LibClang.rst
@@ -404,3 +404,9 @@ following situations are explicitly unsupported:
   compatible across library versions.
 * For the same reason as above, serializing objects from one version of the
   library and deserializing with a different version is also not supported.
+
+Note: because libclang is a wrapper around the compiler frontend, it is not a
+`security-sensitive component`_ of the LLVM Project. Consider using a sandbox
+or some other mitigation approach if processing untrusted input.
+
+.. _security-sensitive component: 
https://llvm.org/docs/Security.html#what-is-considered-a-security-issue

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