VULNERABILITY INTELLIGENCE

CVE-2026-81717

CVSS score3.5 LOW
EPSS probability0.12%
CISA KEVNot currently listed
Published2026-08-27
Last modified2026-09-02
CVSS vectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Description

openssl_encrypt (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._verify_integrity_file only validates files listed in the manifest, so files added to the drive — including a root-level autorun payload — are not detected and integrity verification still passes. Additionally, a globally constant, source-embedded KDF salt (_LEGACY_FIXED_SALT) is used to derive the drive encryption key for any drive lacking a per-drive salt file, defeating precomputation resistance and enabling an offline rainbow-table attack.

Weakness classification

  • disclosure@vulncheck.com: CWE-347

Primary references