CVE-2025-27498: AEADs/ascon-aead: Plaintext exposed in decrypt_in_place_detached even on tag verification failure

March 3, 2025

In decrypt_in_place_detached, the decrypted ciphertext (which is the correct ciphertext) is exposed even if the tag is incorrect.

References

github.com/RustCrypto/AEADs
github.com/RustCrypto/AEADs/commit/d1d749ba57e38e65b0e037cd744d0b17f7254037
github.com/RustCrypto/AEADs/security/advisories/GHSA-r38m-44fw-h886
github.com/advisories/GHSA-r38m-44fw-h886
nvd.nist.gov/vuln/detail/CVE-2025-27498

Code Behaviors & Features

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