diff --git a/rsa-pkcs-openssl/Program.cs b/rsa-pkcs-openssl/Program.cs
new file mode 100644
index 0000000..7582f42
--- /dev/null
+++ b/rsa-pkcs-openssl/Program.cs
@@ -0,0 +1,98 @@
+/* This test validates .NET preserves the OpenSSL 3.2 behavior introduced in
+   https://github.com/openssl/openssl/pull/13817.
+   This change is backported to earlier OpenSSL versions in the Red Hat/Fedora distributions. */
+
+using System.Security.Cryptography;
+
+/* The data used in this test was generated using https://github.com/tomato42/marvin-toolkit/.
+   The data has PKCS padding errors. Instead of returning an error code for the padding errors,
+   OpenSSL returns success with data. */
+
+string key = @"
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----";
+
+byte[] data = new[]
+{
+0x70, 0x84, 0xab, 0x58, 0x44, 0x70, 0xf5, 0x55, 0x48, 0x3c, 0x06, 0xaa, 0x5f, 0x73, 0xda, 0x05,
+0x81, 0xf7, 0x4f, 0x4c, 0x9f, 0xfa, 0xa2, 0xf9, 0x8a, 0xae, 0xd6, 0xf5, 0xbe, 0x17, 0x2e, 0x1c,
+0x55, 0x6a, 0xd8, 0x73, 0x53, 0xdf, 0x5b, 0xa7, 0x5d, 0x09, 0xb8, 0x81, 0x3e, 0xf3, 0x16, 0x77,
+0x23, 0xc1, 0x09, 0x16, 0xa5, 0x4d, 0x96, 0xff, 0xb4, 0xd5, 0xef, 0x7d, 0xc1, 0x5d, 0x8f, 0xc1,
+0x75, 0x8b, 0x3c, 0xe0, 0xc8, 0xaf, 0xeb, 0xca, 0x0e, 0x46, 0x2b, 0x06, 0x8b, 0xf5, 0x3e, 0xb7,
+0xa4, 0xf1, 0xec, 0xb4, 0x80, 0x2d, 0x6f, 0xd8, 0xa9, 0x63, 0xca, 0x3e, 0x60, 0x12, 0xae, 0x89,
+0x59, 0x1e, 0xd3, 0x9e, 0x97, 0x78, 0x86, 0x2a, 0x49, 0xca, 0x55, 0x6d, 0xb8, 0xd5, 0x40, 0xbc,
+0x31, 0x05, 0x2a, 0x2a, 0x7d, 0x77, 0x27, 0x53, 0xd8, 0xe8, 0xae, 0x89, 0xad, 0x80, 0x56, 0x08,
+0x49, 0x5f, 0xf5, 0xa6, 0xe8, 0x58, 0x8f, 0x39, 0x58, 0xfe, 0xc2, 0x83, 0xb7, 0x88, 0x82, 0xb7,
+0x90, 0x71, 0xe2, 0xd6, 0xbe, 0x2d, 0x93, 0x91, 0xb3, 0x2c, 0x9b, 0x27, 0xf5, 0x1d, 0xb8, 0xe5,
+0x2d, 0x6a, 0xd9, 0x77, 0xbc, 0xc7, 0xb7, 0x09, 0xa6, 0x41, 0xc0, 0x57, 0xd1, 0xeb, 0x19, 0x7f,
+0xe6, 0x61, 0x62, 0x54, 0xd9, 0x91, 0x6c, 0x3e, 0x76, 0x64, 0xb5, 0xa8, 0xcc, 0x8e, 0x0c, 0xdf,
+0xbd, 0xec, 0x9b, 0xab, 0x55, 0xc6, 0x0b, 0x29, 0xa8, 0xc6, 0x72, 0xbf, 0xcb, 0x58, 0xda, 0x4d,
+0x0e, 0x1a, 0x34, 0xd4, 0xc9, 0x93, 0x97, 0xce, 0xbc, 0x19, 0x50, 0xb3, 0x4b, 0xf2, 0xf9, 0x1f,
+0x2e, 0x62, 0xbf, 0xf2, 0x5f, 0x50, 0xce, 0x89, 0x64, 0xd5, 0x54, 0xcc, 0xc4, 0x49, 0x57, 0xfa,
+0x48, 0x7f, 0x19, 0x82, 0x17, 0x2b, 0xeb, 0x7e, 0x22, 0x6b, 0xd9, 0xf7, 0x77, 0x3e, 0xce, 0x72,
+}.Select(i => (byte)i).ToArray();
+
+byte[] expected = new[]
+{
+0x38, 0xd2, 0x12, 0xd1, 0xef, 0xd2, 0x4d, 0x28, 0x99, 0x3e, 0x07, 0x0d, 0x7b, 0xb2, 0x8b, 0xe7,
+0x4f, 0x8c, 0xbe, 0x68, 0x9e, 0x29, 0x01, 0x14, 0xd6, 0x08, 0x73, 0x67, 0x34, 0x3e, 0xed, 0x03,
+0x6c, 0x08, 0x01, 0x75, 0x4e, 0xea, 0xcf, 0x1f, 0x98, 0xdd, 0x3b, 0x82, 0x78, 0x3c, 0xaf, 0x74,
+0x56, 0xf2, 0xab, 0xd8, 0x2c, 0xe9, 0xe6, 0xcd, 0x1d, 0x61, 0xc9, 0x77, 0xfc, 0x71, 0x14, 0x9c,
+0x9d, 0x53, 0xfc, 0xf4, 0xfc, 0x4a, 0x4d, 0xff, 0x93, 0x96, 0x08, 0xb8, 0x90, 0x83, 0xad, 0xfa,
+0x73, 0x87, 0xeb, 0xbe, 0x28, 0x21, 0xae, 0x8d, 0xa8, 0xca, 0x79, 0xff, 0x38, 0xa2, 0x26, 0x67,
+0xd4, 0x91, 0x05, 0x34, 0x1b, 0x02, 0xea, 0x11, 0x02, 0x60, 0xe9, 0x4d, 0x5c, 0xfd, 0x14, 0x7a,
+0xbf, 0xfc, 0xff, 0xe9, 0x5b, 0x08, 0x6e, 0x10, 0x9a, 0x1d, 0xdf,
+}.Select(i => (byte)i).ToArray();
+
+using RSA rsa = RSA.Create();
+rsa.ImportFromPem(key);
+
+byte[] decrypted;
+try
+{
+    decrypted = rsa.Decrypt(data, RSAEncryptionPadding.Pkcs1);
+}
+catch (Exception ex)
+{
+    Console.WriteLine("FAIL: RSA decryption threw an exception:");
+    Console.WriteLine(ex);
+    return 1;
+}
+
+if (!expected.AsSpan().SequenceEqual(decrypted))
+{
+    Console.WriteLine("FAIL: decrypted data does not match the expected value from OpenSSL:");
+    Console.WriteLine($"Actual:   {string.Join("", decrypted.Select(b => b.ToString("x2")))}");
+    Console.WriteLine($"Expected: {string.Join("", expected.Select(b => b.ToString("x2")))}");
+    return 1;
+}
+
+
+Console.WriteLine("PASS: .NET RSA+PKCS API matches OpenSSL behavior.");
+return 0;
diff --git a/rsa-pkcs-openssl/rsa-pkcs-openssl.csproj b/rsa-pkcs-openssl/rsa-pkcs-openssl.csproj
new file mode 100644
index 0000000..6613dbd
--- /dev/null
+++ b/rsa-pkcs-openssl/rsa-pkcs-openssl.csproj
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>$(TestTargetFramework)</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/rsa-pkcs-openssl/test.json b/rsa-pkcs-openssl/test.json
new file mode 100644
index 0000000..e1aeedd
--- /dev/null
+++ b/rsa-pkcs-openssl/test.json
@@ -0,0 +1,15 @@
+{
+  "name": "rsa-pkcs-openssl",
+  "enabled": true,
+  "requiresSdk": true,
+  "version": "6.0",
+  "versionSpecific": false,
+  "type": "bash",
+  "cleanup": true,
+  "skipWhen": [
+    "vmr-ci,version=9", // upstream main branch opts out of the OpenSSL change.
+    "os=alpine"         // test validates behavior for Fedora/RHEL.
+  ],
+  "ignoredRIDs":[
+  ]
+}
diff --git a/rsa-pkcs-openssl/test.sh b/rsa-pkcs-openssl/test.sh
new file mode 100755
index 0000000..7369d68
--- /dev/null
+++ b/rsa-pkcs-openssl/test.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+IFS=$'\n\t'
+
+dotnet run