CVE-2026-74870

opensslencrypt pip versions = 1.4.7 contain an information exposure vulnerability where the 'hsm fido2-test' and 'hsm onlykey-test' diagnostic commands unconditionally print the full derived hardware pepper as hex to stdout/stderr cryptcli.py, handlehsmcommand. The printed value can persist in...

CVE-2026-74900 openssl_encrypt before 1.4.0 Weak Shared Secret via PQC Simulation Mode

opensslencrypt versions before 1.4.0 contain a critical vulnerability in pqc.py where KEM decapsulation failures silently fall back to simulation mode, generating a deterministic shared secret from only 16 bytes of the private key and publicly available encapsulated key data. Attackers who obtain...

CVE-2026-74900 openssl_encrypt before 1.4.0 Weak Shared Secret via PQC Simulation Mode

opensslencrypt versions before 1.4.0 contain a critical vulnerability in pqc.py where KEM decapsulation failures silently fall back to simulation mode, generating a deterministic shared secret from only 16 bytes of the private key and publicly available encapsulated key data. Attackers who obtain...

CVE-2026-74901 openssl_encrypt before 1.4.0 Authentication Bypass via AES-CTR Fallback

opensslencrypt versions before 1.4.0 contain an authentication bypass vulnerability in pqc.py where AES-GCM decryption failures trigger fallback to unauthenticated AES-CTR mode. Attackers can modify ciphertext in transit to bypass integrity verification and perform bit-flipping attacks without...

EUVD-2026-60117

opensslencrypt versions before 1.4.0 contain a critical vulnerability in pqc.py where KEM decapsulation failures silently fall back to simulation mode, generating a deterministic shared secret from only 16 bytes of the private key and publicly available encapsulated key data. Attackers who obtain...

CVE-2026-74900

openssl_encrypt before version 1.4.0 has a flaw in pqc.py: when KEM decapsulation fails, it silently falls back to simulation mode, deriving a deterministic shared secret from just 16 bytes of the private key plus public encapsulated key data. An attacker with those 16 private-key bytes can compu...

CVE-2026-74901 openssl_encrypt before 1.4.0 Authentication Bypass via AES-CTR Fallback

opensslencrypt versions before 1.4.0 contain an authentication bypass vulnerability in pqc.py where AES-GCM decryption failures trigger fallback to unauthenticated AES-CTR mode. Attackers can modify ciphertext in transit to bypass integrity verification and perform bit-flipping attacks without...

CVE-2026-74900

opensslencrypt versions before 1.4.0 contain a critical vulnerability in pqc.py where KEM decapsulation failures silently fall back to simulation mode, generating a deterministic shared secret from only 16 bytes of the private key and publicly available encapsulated key data. Attackers who obtain...

EUVD-2026-60118

opensslencrypt versions before 1.4.0 contain an authentication bypass vulnerability in pqc.py where AES-GCM decryption failures trigger fallback to unauthenticated AES-CTR mode. Attackers can modify ciphertext in transit to bypass integrity verification and perform bit-flipping attacks without...

CVE-2026-74901

The Python package openssl_encrypt (versions before 1.4.0) has a flaw in pqc.py : when AES-GCM decryption fails, the code silently falls back to unauthenticated AES-CTR mode. This removes integrity verification, allowing an attacker with network access to modify ciphertext in transit via bit-flip...

CVE-2026-74899

openssl_encrypt (versions before 1.4.0) has a sandbox escape in its IsolatedPluginExecutor component. Restricted exec() builtins expose Python type objects, allowing attackers to traverse the class hierarchy via __class__.__mro__.__subclasses__() to reach system functions and run arbitrary OS com...

CVE-2026-74899 openssl_encrypt before 1.4.0 Sandbox Escape via Type Hierarchy

opensslencrypt versions before 1.4.0 contain a sandbox escape vulnerability in IsolatedPluginExecutor that exposes Python type objects in restricted exec builtins. Attackers can traverse the Python class hierarchy via class.mro.subclasses to access system functions and execute arbitrary OS comman...

CVE-2026-74899 openssl_encrypt before 1.4.0 Sandbox Escape via Type Hierarchy

opensslencrypt versions before 1.4.0 contain a sandbox escape vulnerability in IsolatedPluginExecutor that exposes Python type objects in restricted exec builtins. Attackers can traverse the Python class hierarchy via class.mro.subclasses to access system functions and execute arbitrary OS comman...

CVE-2026-74895 openssl_encrypt before 1.4.0 Plugin Sandbox Bypass via Process Isolation

opensslencrypt versions before 1.4.0 fail to apply sandbox restrictions in the default process isolation mode for plugin execution. Attackers can execute malicious plugins with unrestricted access to the filesystem, network, subprocess execution, and all Python modules...

CVE-2026-74896 openssl_encrypt before 1.4.0 Sandbox Escape via Dunder Attribute Traversal

opensslencrypt versions before 1.4.0 contain a sandbox escape vulnerability in the DangerousPatternVisitor AST analyzer that fails to detect dunder attribute traversal techniques. Attackers can use class, bases, subclasses, and globals chains to access restricted functions and execute arbitrary...

CVE-2026-74895

openssl_encrypt (Python package) versions before 1.4.0 fail to apply sandbox restrictions in the default process isolation mode for plugin execution, allowing attackers to run malicious plugins with unrestricted filesystem, network, subprocess, and Python module access (CVSS 9.8 CRITICAL). No in-...

CVE-2026-74896

The Python package openssl_encrypt before 1.4.0 ships a DangerousPatternVisitor AST analyzer intended to block dangerous code in plugin scripts, but it fails to recognize dunder attribute traversal chains (__class__, __bases__, __subclasses__(), __globals__). Attackers can use these chains to rea...

CVE-2026-74895 openssl_encrypt before 1.4.0 Plugin Sandbox Bypass via Process Isolation

opensslencrypt versions before 1.4.0 fail to apply sandbox restrictions in the default process isolation mode for plugin execution. Attackers can execute malicious plugins with unrestricted access to the filesystem, network, subprocess execution, and all Python modules...

EUVD-2026-60114

opensslencrypt versions before 1.4.0 fail to apply sandbox restrictions in the default process isolation mode for plugin execution. Attackers can execute malicious plugins with unrestricted access to the filesystem, network, subprocess execution, and all Python modules...

EUVD-2026-60115

opensslencrypt versions before 1.4.0 contain a sandbox escape vulnerability in the DangerousPatternVisitor AST analyzer that fails to detect dunder attribute traversal techniques. Attackers can use class, bases, subclasses, and globals chains to access restricted functions and execute arbitrary...