CVE-2026-81698: Improper Neutralization of Special Elements used in an OS Command

opensslencrypt versions before 1.4.9 contain a shell injection vulnerability in the info command's reconstructed CLI block that interpolates untrusted metadata fields without quoting. Attackers can craft metadata values like peppername containing shell commands that execute when users copy the...

CVE-2026-81689: Use of Password Hash With Insufficient Computational Effort

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-2026-81686: Improper Input Validation

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-2026-81683: Cleartext Storage of Sensitive Information

opensslencrypt pip package openssl-encrypt versions 1.4.8 and earlier store an mTLS client private key in cleartext within a world-readable 0644 SharedPreferences file via the desktop GUI's Settings screen 'combined certificate and private key' PEM field. A local attacker with file system access...

CVE-2026-81718: Inadequate Encryption Strength

opensslencrypt versions before 1.4.9 use under-parameterized PBKDF2-HMAC-SHA256 with only 100,000 iterations to protect PQC keyfile private keys and 10,000 iterations for dual-encryption file-password verification. Attackers who obtain keyfiles or encrypted files can brute-force wrapping password...

CVE-2026-81681: Missing Encryption of Sensitive Data

opensslencrypt 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 the workspace encrypted, but the workspace directory is actually stored in cleartext and the derived encryption k...

CVE-2026-81719: Improper Control of Generation of Code

opensslencrypt before 1.4.9 executes untrusted third-party plugins with insufficient controls: the plugin signature policy defaulted to WARN, so an unsigned/unverifiable non-built-in plugin was compiled and executed in the host process at import time, before the runtime sandbox is installed. The...

CVE-2026-81699: Allocation of Resources Without Limits or Throttling

opensslencrypt versions before 1.4.9 fail to properly validate key derivation function costs in crafted files, allowing attackers to trigger unbounded memory and CPU exhaustion during pre-authentication processing. Attackers can supply malicious files with excessive KDF parameters to exhaust syst...

CVE-2026-81688: Missing Encryption of Sensitive Data

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-2026-81721: Uncontrolled Resource Consumption

opensslencrypt before 1.4.9 fails to validate KDF cost parameters in encrypted file metadata and keystore headers, allowing attackers to trigger unbounded memory allocation. Attackers can craft malicious encrypted files declaring arbitrarily large Argon2, scrypt, or balloon KDF parameters to...

CVE-2026-81720: Uncontrolled Resource Consumption

opensslencrypt before 1.4.9 fails to validate the memorycost parameter from identity file protection blocks, allowing attackers to trigger out-of-memory conditions during key derivation. Attackers with write access to local identity stores can craft malicious identity files with excessive...

CVE-2026-81717: Improper Verification of Cryptographic Signature

opensslencrypt pip package openssl-encrypt before 1.4.9 contains two weaknesses in the portable USB drive feature, whose threat model treats the removable drive as untrusted attacker with physical write access. USBDriveCreator.verifyintegrityfile only validates files listed in the manifest, so...

CVE-2026-81716: Improper Limitation of a Pathname to a Restricted Directory

opensslencrypt pip: openssl-encrypt versions before 1.4.9 contain a path traversal flaw in PluginSandbox.issafepath, which authorized file access using a bare string-prefix match. A sandboxed plugin without the READFILES permission could read or write another plugin's directory that merely shares...

CVE-2026-81704: Use of Password Hash With Insufficient Computational Effort

opensslencrypt 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 faste...

CVE-2026-81703: Improper Authentication

opensslencrypt versions before 1.4.9 fail to validate encryption status of embedded post-quantum private keys in file metadata. Attackers can craft files with unencrypted embedded PQC keys that decrypt under any password, bypassing authentication and producing attacker-chosen plaintext with false...

CVE-2026-81695: Improper Output Neutralization for Logs

opensslencrypt versions before 1.4.9 fail to escape attacker-controlled keyid values printed to stderr during decrypt auto-detection. Attackers can craft encrypted files with malicious keyid containing escape sequences to repaint terminal output and forge authenticity verification blocks...

CVE-2026-81693: Memory Allocation with Excessive Size Value

opensslencrypt before 1.4.9 fails to validate the total field from QR JSON payloads before materializing ranges. Attackers can supply crafted QR images with extremely large total values to trigger unbounded memory allocation and cause denial of service through out-of-memory conditions...

CVE-2026-81682: Incorrect Default Permissions

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-2026-81684: Invocation of Process Using Visible Sensitive Information

In opensslencrypt pip package openssl-encrypt versions = 1.4.8, the desktop GUI passes the steganography password to the CLI child process on the command line via the --stego-password argument on both encrypt and decrypt paths instead of via an environment variable as done for the main password...

CVE-2026-81685: Improper Encoding or Escaping of Output

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...