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    CVE-2026-81704

    openssl_encrypt versions before 1.4.9 contain a weak key derivation vulnerability in the D-Bus CryptoService.EncryptFile handler that uses unstretched SHA-256 instead of Argon2id. Attackers can perform offline password guessing against encrypted files roughly six to seven orders of magnitude faster than documented protection by exploiting the missing key stretching and hash rounds.

    Published:Aug 27, 2026
    Last Modified:Sep 3, 2026
    EPS:Aug 27, 2026
    EPSS Score:0.00198
    CVSS Score:7.5

    Affected Products

    Vendor
    Jahlives
    Product
    Openssl Encrypt

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-55 Rainbow Table Password Cracking

    Related CVEs

    CVE-2026-81721 (CVSS 8.7) — openssl_encrypt before 1.4.9 fails to validate KDF cost parameters in encrypted file metadata and keystore hea…
    CVE-2026-81720 (CVSS 6.9) — openssl_encrypt before 1.4.9 fails to validate the memory_cost parameter from identity file protection blocks,…
    CVE-2026-81719 (CVSS 9.3) — openssl_encrypt before 1.4.9 executes untrusted third-party plugins with insufficient controls: the plugin sig…
    CVE-2026-81718 (CVSS 8.7) — openssl_encrypt versions before 1.4.9 use under-parameterized PBKDF2-HMAC-SHA256 with only 100,000 iterations …
    CVE-2026-81717 (CVSS 9.3) — openssl_encrypt (pip package openssl-encrypt) before 1.4.9 contains two weaknesses in the portable USB drive f…
    CVE-2026-81716 (CVSS 8.7) — openssl_encrypt (pip: openssl-encrypt) versions before 1.4.9 contain a path traversal flaw in PluginSandbox._i…
    CVE-2026-81715 (CVSS 8.7) — openssl_encrypt (pip package openssl-encrypt) versions <= 1.4.8 do not redact the keyserver bearer token passe…
    CVE-2026-81714 (CVSS 9.3) — openssl_encrypt (pip: openssl-encrypt) versions <= 1.4.8 use suffix-tolerant fingerprint matching in enroll_tr…
    CVE-2026-81707 (CVSS 9.3) — openssl_encrypt before 1.4.9 fails to sanitize the email field of imported identity documents, allowing attack…
    CVE-2026-81706 (CVSS 9.3) — openssl_encrypt before 1.4.9 fails to prevent namespace collisions between own identities and contacts in Iden…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High