[Docs] Mention security of libclang #149357
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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.
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@llvm/pr-subscribers-clang Author: Aaron Ballman (AaronBallman) ChangesLibclang 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. Full diff: https://github.com/llvm/llvm-project/pull/149357.diff 1 Files Affected:
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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This was referenced Jul 23, 2025
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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.