diff --git a/test/data/issue_ghsa_jgm9_5fw5_pw9p_poc.exv b/test/data/issue_ghsa_jgm9_5fw5_pw9p_poc.exv
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diff --git a/test/data/issue_ghsa_jgm9_5fw5_pw9p_poc.jp2 b/test/data/issue_ghsa_jgm9_5fw5_pw9p_poc.jp2
new file mode 100644
index 00000000..45deb112
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diff --git a/tests/bugfixes/github/test_issue_ghsa_jgm9_5fw5_pw9p.py b/tests/bugfixes/github/test_issue_ghsa_jgm9_5fw5_pw9p.py
new file mode 100644
index 00000000..0c8005e2
--- /dev/null
+++ b/tests/bugfixes/github/test_issue_ghsa_jgm9_5fw5_pw9p.py
@@ -0,0 +1,43 @@
+# -*- coding: utf-8 -*-
+
+from system_tests import CaseMeta, path
+
+
+class WebPImageDoWriteMetadataOutOfBoundsRead(metaclass=CaseMeta):
+    """
+    Regression test for the bug described in:
+    https://github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9p
+    """
+    url = "https://github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9p"
+
+    filename1 = path("$data_path/issue_ghsa_jgm9_5fw5_pw9p_poc.jp2")
+    filename2 = path("$data_path/issue_ghsa_jgm9_5fw5_pw9p_poc.exv")
+    commands = ["$exiv2 in $filename1"]
+    stdout = [""]
+    stderr = [
+"""Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x010f has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x010f has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x0000 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x8769 has unknown Exif (TIFF) type 0; setting type size 1.
+Warning: Directory Image, entry 0x8769 doesn't look like a sub-IFD.
+Warning: Directory Image, entry 0x8825 doesn't look like a sub-IFD.
+$filename1: Could not write metadata to file: $kerCorruptedMetadata
+"""]
+    retval = [1]