crypto/x509: Include OID in duplicate extension error message

golang · May 3, 2024 · 0ed2f97 · 0ed2f97
1 parent 44b54b9
commit 0ed2f97
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/crypto/x509/parser.go b/src/crypto/x509/parser.go
@@ -964,7 +964,7 @@ func parseCertificate(der []byte) (*Certificate, error) {
 					}
 					oidStr := ext.Id.String()
 					if seenExts[oidStr] {
-						return nil, errors.New("x509: certificate contains duplicate extensions")
+						return nil, errors.New("x509: certificate contains duplicate extension %s", oidStr)
 					}
 					seenExts[oidStr] = true
 					cert.Extensions = append(cert.Extensions, ext)