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CVE-2026-81717— openssl_encrypt before 1.4.9 Integrity Bypass via Added Files

Quick assessment

Affected
jahlives openssl_encrypt
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

（Python 包 ）在 1.4.9 版本之前，其便携 U 盘功能存在两个安全弱点，威胁模型假设可移动存储设备不可信（即攻击者拥有物理写权限）。 具体而言： 1. 完整性校验盲区： 方法仅校验清单（manifest）中列出的文件。因此，若攻击者向 U 盘添加了新文件（例如根目录下的自动运行 [Autorun] 恶意载荷），这些新增文件不会被检测到，而完整性校验仍会显示通过。 2. 固定 KDF 盐值导致离线攻击风险：对于缺少每盘唯一盐值文件的 U 盘，系统会使用一个全局常量、嵌入在源代码中的固定 KDF 盐值（ ）

CVSS 3.5 · Low

Affected Version Matrix 2

VendorProduct Version RangeStatus
jahlives openssl_encrypt < 1.4.9 affected
1.4.9 unaffected
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I. Basic Information for CVE-2026-81717

Vulnerability Information
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Vulnerability Title
openssl_encrypt before 1.4.9 Integrity Bypass via Added Files
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
jahlives openssl_encrypt 0 ~ 1.4.9 -

II. Public POCs for CVE-2026-81717

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III. Intelligence Information for CVE-2026-81717

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Vendor Advisories for CVE-2026-81717 (2)

Same Patch Batch · jahlives · 2026-08-27 · 36 CVEs total

CVE-2026-81707 9.8 CRITICAL openssl_encrypt before 1.4.9 ANSI Escape Injection via Identity Email
CVE-2026-81701 9.8 CRITICAL openssl_encrypt before 1.4.9 Arbitrary Code Execution via unsigned plugin
CVE-2026-81700 9.8 CRITICAL openssl_encrypt before 1.4.9 GPG Signature Verification Bypass
CVE-2026-81702 9.8 CRITICAL openssl_encrypt before 1.4.9 Key Substitution via Identity Load
CVE-2026-81683 8.4 HIGH openssl_encrypt before 1.4.9 Plaintext Private Key Storage
CVE-2026-81719 7.8 HIGH openssl_encrypt before 1.4.9 Remote Code Execution via Plugin
CVE-2026-81721 7.5 HIGH openssl_encrypt before 1.4.9 Denial of Service via KDF
CVE-2026-81704 7.5 HIGH openssl_encrypt before 1.4.9 Weak Key Derivation via D-Bus
CVE-2026-81693 7.5 HIGH openssl_encrypt before 1.4.9 Denial of Service via QR total field
CVE-2026-81691 7.5 HIGH openssl_encrypt before 1.4.9 Credential Leakage via Unvalidated Server URLs
CVE-2026-81705 7.5 HIGH openssl-encrypt before 1.4.9 Password Cleartext Leak via Debug
CVE-2026-81689 7.5 HIGH openssl_encrypt before 1.4.9 Weak Pepper Key Derivation
CVE-2026-81699 7.5 HIGH openssl_encrypt before 1.4.9 Denial of Service via unbounded KDF cost
CVE-2026-81692 7.5 HIGH openssl_encrypt before 1.4.9 Denial of Service via STREAMINFO
CVE-2026-81688 7.5 HIGH openssl_encrypt before 1.4.9 Plaintext Confirmation Oracle via SHA-256
CVE-2026-81718 7.5 HIGH openssl_encrypt before 1.4.9 Weak Cryptographic Parameters
CVE-2026-81698 7.5 HIGH openssl_encrypt before 1.4.9 Shell Injection via info command
CVE-2026-81690 7.3 HIGH verify-usb before 1.4.9 Symlink Directory Traversal Code Execution
CVE-2026-81714 7.0 HIGH openssl_encrypt before 1.4.9 Plugin Signing Trust Anchor Enrollment Bypass
CVE-2026-81706 6.8 MEDIUM openssl_encrypt before 1.4.9 Key Substitution via Identity Shadowing

Showing top 20 of 36 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: openssl_encrypt
Same vendor: jahlives
Same weakness: CWE-347

V. Comments for CVE-2026-81717

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