Yes, numerous times. Here are some famous ones:
Android SecureRandom (2013)
https://android-developers.googleblog.com/2013/08/some-secur... CryptoJS / Ill Bloom (2026)
https://illbloom.org/articles/cryptojs-vulnerability/ Trust Wallet Browser Extension (2023)
https://www.ledger.com/blog/funds-of-every-wallet-created-wi... Libbitcoin / Milk Sad (2023)
https://milksad.info/disclosure.html Trust Wallet iOS / Trezor Library
https://secbit.io/blog/en/2024/01/19/trust-wallets-fomo3d-su...