In Bamidbar 12:1 the pasuk says
ותדבר מרים ואהרן במשה על־אדות האשה הכשית אשר לקח כי־אשה כשית לקח
Miriam and Aaron spoke against Moses because of the Cushite woman he had married: “He married a Cushite woman!”
Rashi, citing the Sifri says (in part)
וּמִנַּיִן הָיְתָה יוֹדַעַת מִרְיָם שֶׁפֵּרֵשׁ מֹשֶׁה מִן הָאִשָּׁה? רַבִּי נָתָן אוֹמֵר מִרְיָם הָיְתָה בְצַד צִפּוֹרָה בְּשָׁעָה שֶׁנֶּאֱמַר לְמֹשֶׁה אֶלְדָּד וּמֵידָד מִתְנַבְּאִים בַּמַּחֲנֶה, כֵּיוָן שֶׁשָּׁמְעָה צִפּוֹרָה, אָמְרָה אוֹי לְנְשׁוֹתֵיהֶן שֶׁל אֵלּוּ אִם הֵם נִזְקָקִים לִנְבוּאָה, שֶׁיִּהְיוּ פוֹרְשִׁין מִנְּשׁוֹתֵיהֶן כְּדֶרֶךְ שֶׁפֵּרֵשׁ בַּעְלִי מִמֶּנִּי,
And whence did Miriam know that Moses had separated himself from his wife? R. Nathan answered: “Miriam was beside Zipporah When it was told to Moses, ‘Eldad and Medad are prophesying in the camp’. When Zipporah heard this, she exclaimed, Woe to the wives of these if they have anything to do with prophecy, for they will separate from their wives just has my husband has separated from me!
This information clearly cast Moshe in a negative light in the eyes of Miriam (and perhaps Aron as well). I would like to know if Tziporah transgressed any of the laws related to lashon hora or other forms of forbidden speech by saying what she said. And, if so was she punished?