Commit 5f6b60f2e for imagemagick.org

commit 5f6b60f2e18aa760aae94f0601a2758d190451c8
Author: Cristy <urban-warrior@imagemagick.org>
Date:   Tue Oct 13 19:35:12 2026 -0400

    https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-g5j8-ff59-wp88

diff --git a/coders/tiff.c b/coders/tiff.c
index 417bd1697..6b5b7d643 100644
--- a/coders/tiff.c
+++ b/coders/tiff.c
@@ -2291,7 +2291,8 @@ static Image *ReadTIFFImage(const ImageInfo *image_info,
   */
   image=ReadTIFFImageInternal(image_info,&is_dng,exception);
   if ((image == (Image *) NULL) || (is_dng == MagickFalse) ||
-      (image_info->affirm != MagickFalse))
+      (image_info->affirm != MagickFalse) ||
+      (GetMagickInfo("DNG",exception) == (const MagickInfo *) NULL))
     return(image);
   /*
     Try the DNG image reader and only use its result when it succeeds.