CVE-2026-81689 openssl_encrypt before 1.4.9 Weak Pepper Key Derivation

opensslencrypt versions before 1.4.9 derive the remote-pepper wrap key using unsalted HKDF-SHA256 or bare SHA-256 of the password, allowing identical keys across all users and files. Attackers with access to wrapped pepper blobs can precompute a single dictionary table and perform fleet-wide...

EUVD-2026-67045

opensslencrypt versions before 1.4.9 derive the remote-pepper wrap key using unsalted HKDF-SHA256 or bare SHA-256 of the password, allowing identical keys across all users and files. Attackers with access to wrapped pepper blobs can precompute a single dictionary table and perform fleet-wide...

CVE-2026-81688 openssl_encrypt before 1.4.9 Plaintext Confirmation Oracle via SHA-256

opensslencrypt 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...

CVE-2026-81688

openssl_encrypt versions before 1.4.9 store an unkeyed SHA-256 hash of the plaintext in the cleartext file header metadata. Because the hash is not keyed, an attacker who obtains an encrypted file can read the hash without the password and use it as a plaintext confirmation oracle — verifying gue...

EUVD-2026-67044

opensslencrypt 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...

CVE-2026-81688 openssl_encrypt before 1.4.9 Plaintext Confirmation Oracle via SHA-256

opensslencrypt 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...

CVE-2026-81687

openssl_encrypt versions before 1.4.9 are vulnerable to a denial-of-service condition caused by the absence of a time ceiling on key derivation function (KDF) iteration counts embedded in file metadata. An attacker can craft a file with an extremely high iteration count, forcing the application t...

CVE-2026-81686 openssl_encrypt before 1.4.9 D-Bus Properties Authorization Bypass

opensslencrypt 1.4.x before 1.4.9 contains an optional D-Bus crypto service whose org.freedesktop.DBus.Properties.Set method performs neither a polkit authorization check nor value validation. Any local user on the system bus can call Set without authorization and set MaxConcurrentOperations to...

CVE-2026-81686 openssl_encrypt before 1.4.9 D-Bus Properties Authorization Bypass

opensslencrypt 1.4.x before 1.4.9 contains an optional D-Bus crypto service whose org.freedesktop.DBus.Properties.Set method performs neither a polkit authorization check nor value validation. Any local user on the system bus can call Set without authorization and set MaxConcurrentOperations to...

CVE-2026-81686

openssl_encrypt 1.4.x before 1.4.9 ships an optional D-Bus crypto service whose org.freedesktop.DBus.Properties.Set method performs neither a polkit authorization check nor value validation. Any local user on the system bus can set MaxConcurrentOperations to 0/negative (blocking all subsequent op...

EUVD-2026-67043

opensslencrypt versions before 1.4.9 fail to enforce a time ceiling on key derivation function iteration counts specified in file metadata. Attackers can craft files with extremely high KDF iteration counts to consume CPU resources for unbounded periods before password verification occurs...

EUVD-2026-67042

opensslencrypt 1.4.x before 1.4.9 contains an optional D-Bus crypto service whose org.freedesktop.DBus.Properties.Set method performs neither a polkit authorization check nor value validation. Any local user on the system bus can call Set without authorization and set MaxConcurrentOperations to...

CVE-2026-81685 openssl_encrypt before 1.4.9 Text Injection via Recovery Slot Metadata

opensslencrypt versions before 1.4.9 fail to sanitize recovery-slot metadata in the desktop GUI, allowing attackers to inject control characters and line separators into the irreversible-removal confirmation dialog. Attackers can craft encrypted files with malicious slot identifiers containing bi...

EUVD-2026-67041

opensslencrypt versions before 1.4.9 fail to sanitize recovery-slot metadata in the desktop GUI, allowing attackers to inject control characters and line separators into the irreversible-removal confirmation dialog. Attackers can craft encrypted files with malicious slot identifiers containing bi...

CVE-2026-81685

openssl_encrypt versions before 1.4.9 fail to sanitize recovery-slot metadata in the desktop GUI. Attackers can craft encrypted files with malicious slot identifiers containing bidi overrides or line-separator characters, injecting forged text into the irreversible-removal confirmation dialog and...

CVE-2026-81685 openssl_encrypt before 1.4.9 Text Injection via Recovery Slot Metadata

opensslencrypt versions before 1.4.9 fail to sanitize recovery-slot metadata in the desktop GUI, allowing attackers to inject control characters and line separators into the irreversible-removal confirmation dialog. Attackers can craft encrypted files with malicious slot identifiers containing bi...

CVE-2026-81684 openssl_encrypt before 1.4.9 Information Disclosure via Command Line

In opensslencrypt pip package openssl-encrypt versions /cmdline for the lifetime of the subprocess. Fixed in 1.4.9...

EUVD-2026-67038

opensslencrypt versions before 1.4.9 contain an insecure file permissions vulnerability in the desktop GUI that writes decrypted plaintext with world-readable default permissions. Attackers can read decrypted output files created by the GUI as unprivileged local users on multi-user systems...

CVE-2026-81682

openssl_encrypt versions before 1.4.9 contain an insecure file permissions vulnerability in the desktop GUI. The GUI writes decrypted plaintext with world-readable default permissions , allowing unprivileged local users on multi-user systems to read decrypted output files. The CVSS 3.1 score is 6...

CVE-2026-81681

openssl_encrypt (pip package openssl-encrypt) versions ≤ 1.4.8 advertise a portable USB workspace as an "Encrypted USB Workspace" with AES-256-GCM encryption and write a marker declaring it encrypted, but the workspace directory is actually stored in cleartext — the derived encryption key is neve...