diff --color -ruNp a/sshkey.c b/sshkey.c
--- a/sshkey.c	2025-04-29 11:20:59.484832762 +0200
+++ b/sshkey.c	2025-04-29 11:28:32.349323029 +0200
@@ -3599,6 +3599,8 @@ translate_libcrypto_error(unsigned long
 		}
 	case ERR_LIB_ASN1:
 		return SSH_ERR_INVALID_FORMAT;
+	case ERR_LIB_OSSL_DECODER:
+		return SSH_ERR_INVALID_FORMAT;
 	}
 	return SSH_ERR_LIBCRYPTO_ERROR;
 }