medium6.2
CVE-2026-74871
openssl_encrypt versions before 1.4.6 contain a key derivation flaw in sequential XOR composition mode where the last stage cancels out during key generation.
Impact
openssl_encrypt versions before 1.4.6 contain a key derivation flaw in sequential XOR composition mode where the last stage cancels out during key generation. When configured with a single KDF and no prior hashing stage, attackers can bypass memory-hard key derivation and perform offline password cracking at SHA-256 speed instead of the configured KDF cost.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Jahlives | Openssl Encrypt | before 1.4.6 |