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CVE-2026-81704— openssl_encrypt before 1.4.9 Weak Key Derivation via D-Bus

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.

openssl_encrypt 1.4.9 之前的版本在 D-Bus 的 CryptoService.EncryptFile 处理程序中引入了一个弱密钥派生漏洞：该程序使用了未经拉伸的 SHA-256 算法，而非 Argon2id。由于缺少密钥拉伸（key stretching）和哈希轮数（hash rounds），攻击者针对加密文件进行离线密码猜测的速度，比文档中所述的保护机制快约六到七个数量级。

CVSS 7.5 · High

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-2026-81704

Vulnerability Information
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Vulnerability Title
openssl_encrypt before 1.4.9 Weak Key Derivation via D-Bus
Source: CVE Program / CVE List V5
Vulnerability Description
openssl_encrypt 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 faster than documented protection by exploiting the missing key stretching and hash rounds.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用具有不充分计算复杂性的口令哈希
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-2026-81704

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III. Intelligence Information for CVE-2026-81704

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Vendor Advisories for CVE-2026-81704 (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-2026-81698 7.5 HIGH openssl_encrypt before 1.4.9 Shell Injection via info command
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-2026-81690 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
CVE-2026-81684 6.2 MEDIUM openssl_encrypt before 1.4.9 Information Disclosure via Command Line

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-916

V. Comments for CVE-2026-81704

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