diff --git a/tests/data_files/Readme-x509.txt b/tests/data_files/Readme-x509.txt
index 60b0fd4..b56346a 100644
--- a/tests/data_files/Readme-x509.txt
+++ b/tests/data_files/Readme-x509.txt
@@ -74,10 +74,12 @@
 - server7*.crt: I1 E L P1*: EC signed by RSA signed by EC
     *P1 except 7.crt, P2 _int-ca_ca2.crt
     *_space: with PEM error(s)
+    _spurious: has spurious cert in its chain (S7 + I2 + I1)
 - server8*.crt: I2 R L: RSA signed by EC signed by RSA (P1 for _int-ca2)
 - server9*.crt: 1 R C* L P1*: signed using RSASSA-PSS
     *CRL for: 9.crt, -badsign, -with-ca (P1)
 - server10*.crt: I3 E L P2/P3
+    _spurious: S10 + I3 + I1(spurious) + I2
 
 Certificate revocation lists
 ----------------------------
diff --git a/tests/data_files/server10_int3_int-ca2.crt b/tests/data_files/server10_int3_int-ca2.crt
index dfe889a..0df2c65 100644
--- a/tests/data_files/server10_int3_int-ca2.crt
+++ b/tests/data_files/server10_int3_int-ca2.crt
@@ -9,46 +9,6 @@
 AzO3pJx7WJAApZuBX1Q=
 -----END CERTIFICATE-----
 -----BEGIN CERTIFICATE-----
-MIIBwjCCAUegAwIBAgIBSTAKBggqhkjOPQQDAjBLMQswCQYDVQQGEwJOTDERMA8G
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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-ARkD7DTXrodN1wV7jQJkrUuEwPj9Rhvk+MFRkaw=
------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
 MIIBtDCCATqgAwIBAgIBTTAKBggqhkjOPQQDAjBLMQswCQYDVQQGEwJOTDERMA8G
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diff --git a/tests/data_files/server10_int3_int-ca2_ca.crt b/tests/data_files/server10_int3_int-ca2_ca.crt
index e85cc4a..c25482b 100644
--- a/tests/data_files/server10_int3_int-ca2_ca.crt
+++ b/tests/data_files/server10_int3_int-ca2_ca.crt
@@ -9,46 +9,6 @@
 AzO3pJx7WJAApZuBX1Q=
 -----END CERTIFICATE-----
 -----BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/server10_int3_spurious_int-ca2.crt b/tests/data_files/server10_int3_spurious_int-ca2.crt
new file mode 100644
index 0000000..c9d6715
--- /dev/null
+++ b/tests/data_files/server10_int3_spurious_int-ca2.crt
@@ -0,0 +1,64 @@
+-----BEGIN CERTIFICATE-----
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+-----BEGIN CERTIFICATE-----
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+-----BEGIN CERTIFICATE-----
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/tests/data_files/server7_spurious_int-ca.crt b/tests/data_files/server7_spurious_int-ca.crt
new file mode 100644
index 0000000..632c4fd
--- /dev/null
+++ b/tests/data_files/server7_spurious_int-ca.crt
@@ -0,0 +1,65 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+-----BEGIN CERTIFICATE-----
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+ARkD7DTXrodN1wV7jQJkrUuEwPj9Rhvk+MFRkaw=
+-----END CERTIFICATE-----
+-----BEGIN CERTIFICATE-----
+MIIEATCCA4egAwIBAgIBDjAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G
+A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
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+Af5cNR8KhzegznL6amRObGGKmX1F
+-----END CERTIFICATE-----
diff --git a/tests/suites/test_suite_x509parse.data b/tests/suites/test_suite_x509parse.data
index 17c9132..70bd9d6 100644
--- a/tests/suites/test_suite_x509parse.data
+++ b/tests/suites/test_suite_x509parse.data
@@ -747,23 +747,31 @@
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECP_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA1_C:MBEDTLS_SHA256_C
 x509_verify:"data_files/server5.crt":"data_files/test-ca2_cat-past-invalid.crt":"data_files/crl-ec-sha1.pem":"NULL":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_EXPIRED:"compat":"NULL"
 
-X509 Certificate verification #88 (Suite B invalid, EC cert, RSA CA)
+X509 Certificate verification #88 (Spurious cert in the chain)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA1_C:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
+x509_verify:"data_files/server7_spurious_int-ca.crt":"data_files/test-ca2.crt":"data_files/crl-ec-sha1.pem":"NULL":0:0:"compat":"NULL"
+
+X509 Certificate verification #89 (Spurious cert later in the chain)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA1_C:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
+x509_verify:"data_files/server10_int3_spurious_int-ca2.crt":"data_files/test-ca.crt":"data_files/crl-ec-sha1.pem":"NULL":0:0:"compat":"NULL"
+
+X509 Certificate verification #90 (Suite B invalid, EC cert, RSA CA)
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_ECP_C:MBEDTLS_ECP_DP_SECP192R1_ENABLED:MBEDTLS_PKCS1_V15:MBEDTLS_SHA1_C
 x509_verify:"data_files/server3.crt":"data_files/test-ca.crt":"data_files/crl.pem":"NULL":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_BAD_MD|MBEDTLS_X509_BADCERT_BAD_PK|MBEDTLS_X509_BADCERT_BAD_KEY|MBEDTLS_X509_BADCRL_BAD_MD|MBEDTLS_X509_BADCRL_BAD_PK:"suite_b":"NULL"
 
-X509 Certificate verification #89 (Suite B invalid, RSA cert, EC CA)
+X509 Certificate verification #91 (Suite B invalid, RSA cert, EC CA)
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_ECP_C:MBEDTLS_SHA256_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_PKCS1_V15:MBEDTLS_ECP_DP_SECP384R1_ENABLED
 x509_verify:"data_files/server4.crt":"data_files/test-ca2.crt":"data_files/crl-ec-sha256.pem":"NULL":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_BAD_PK:"suite_b":"NULL"
 
-X509 Certificate verification #90 (Suite B Valid, EC cert, EC CA)
+X509 Certificate verification #92 (Suite B Valid, EC cert, EC CA)
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECP_C:MBEDTLS_SHA256_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED
 x509_verify:"data_files/server5.crt":"data_files/test-ca2.crt":"data_files/crl-ec-sha256.pem":"NULL":0:0:"suite_b":"NULL"
 
-X509 Certificate verification #91 (next profile Invalid Cert SHA224 Digest)
+X509 Certificate verification #93 (next profile Invalid Cert SHA224 Digest)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
 x509_verify:"data_files/cert_sha224.crt":"data_files/test-ca.crt":"data_files/crl.pem":"NULL":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_BAD_MD|MBEDTLS_X509_BADCRL_BAD_MD:"next":"NULL"
 
-X509 Certificate verification #92 (next profile Valid Cert SHA256 Digest)
+X509 Certificate verification #94 (next profile Valid Cert SHA256 Digest)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
 x509_verify:"data_files/cert_sha256.crt":"data_files/test-ca.crt":"data_files/crl-ec-sha256.pem":"NULL":0:0:"next":"NULL"