| Package | Affected versions | Patched versions |
|---|---|---|
| openssl-encrypt | < 1.4.9 | 1.4.9 |
| openssl encrypt | < 1.4.9 | 1.4.9 |
openssl_encrypt versions before 1.4.9 store an unkeyed SHA-256 hash of the plaintext in the cleartext file header metadata. Attackers can read this hash without the password to confirm guessed plaintexts offline or fingerprint identical plaintexts across separately-encrypted files.
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