Lower max search depth in preventing StackOverflow in ParseTrailer

BobLd · BobLd · commit a43b968ea9a1 · 2025-08-10T10:06:23.000+01:00
diff --git a/src/UglyToad.PdfPig/Tokenization/Scanner/PdfTokenScanner.cs b/src/UglyToad.PdfPig/Tokenization/Scanner/PdfTokenScanner.cs
@@ -724,7 +724,7 @@ public void DeregisterCustomTokenizer(ITokenizer tokenizer)
 
         private ObjectToken? Get(IndirectReference reference, ref ushort searchDepth)
         {
-            if (searchDepth > 1_000)
+            if (searchDepth > 100)
             {
                 throw new PdfDocumentFormatException("Reached maximum search depth while getting indirect reference.");
             }

Original file line number	Diff line number	Diff line change
`@@ -724,7 +724,7 @@ public void DeregisterCustomTokenizer(ITokenizer tokenizer)`
`724`	`724`
`725`	`725`	`private ObjectToken? Get(IndirectReference reference, ref ushort searchDepth)`
`726`	`726`	`{`
`727`		`- if (searchDepth > 1_000)`
	`727`	`+ if (searchDepth > 100)`
`728`	`728`	`{`
`729`	`729`	`throw new PdfDocumentFormatException("Reached maximum search depth while getting indirect reference.");`
`730`	`730`	`}`