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CVE-2026-74888— openssl_encrypt before 1.4.0 Non-Standard PBKDF2 Key Derivation

Quick assessment

Affected
jahlives openssl_encrypt
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

jahlives openssl_encrypt是jahlives个人开发者的一款服务器端数据加密处理工具。 jahlives openssl_encrypt 1.4.0之前版本存在加密问题漏洞，该漏洞源于使用非标准PBKDF2密钥派生构造，每次调用迭代次数为1，形成安全性未经正式分析的KDF，可能导致攻击者更高效地破解密码。

CVSS 7.5 · High EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1552.004 · Private Keys

Affected Version Matrix 2

VendorProduct Version RangeStatus
jahlives openssl_encrypt < 1.4.0 affected
1.4.0 unaffected
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I. Basic Information for CVE-2026-74888

Vulnerability Information
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Vulnerability Title
openssl_encrypt before 1.4.0 Non-Standard PBKDF2 Key Derivation
Source: CVE Program / CVE List V5
Vulnerability Description
openssl_encrypt versions before 1.4.0 use a non-standard PBKDF2 key derivation construction with iterations=1 per call in an outer loop, creating a KDF whose security properties have not been formally analyzed. Attackers can exploit this weakened key derivation to more efficiently crack passwords protecting legacy encrypted files compared to standard PBKDF2 implementations.
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
使用已被攻破或存在风险的密码学算法
Source: CVE Program / CVE List V5
Vulnerability Title
jahlives openssl_encrypt 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
jahlives openssl_encrypt是jahlives个人开发者的一款服务器端数据加密处理工具。 jahlives openssl_encrypt 1.4.0之前版本存在加密问题漏洞，该漏洞源于使用非标准PBKDF2密钥派生构造，每次调用迭代次数为1，形成安全性未经正式分析的KDF，可能导致攻击者更高效地破解密码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
jahlives openssl_encrypt 0 ~ 1.4.0 -

II. Public POCs for CVE-2026-74888

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 9543 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-74888

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Vendor Advisories for CVE-2026-74888 (2)

Same Patch Batch · jahlives · 2026-08-17 · 30 CVEs total

CVE-2026-74878 9.8 CRITICAL openssl_encrypt before 1.4.0 TOTP Rate Limiter Bypass
CVE-2026-74901 9.8 CRITICAL openssl_encrypt before 1.4.0 Authentication Bypass via AES-CTR Fallback
CVE-2026-74900 9.8 CRITICAL openssl_encrypt before 1.4.0 Weak Shared Secret via PQC Simulation Mode
CVE-2026-74889 9.8 CRITICAL openssl_encrypt before 1.4.0 Weak Key Derivation via HKDF
CVE-2026-74880 9.8 CRITICAL openssl_encrypt before 1.4.0 Token Leakage via Query Parameters
CVE-2026-74894 9.8 CRITICAL openssl_encrypt before 1.4.0 Authentication Bypass via Bearer Token
CVE-2026-74876 9.8 CRITICAL openssl_encrypt before 1.4.0 Unverified Key Bundle Encryption
CVE-2026-74896 9.8 CRITICAL openssl_encrypt before 1.4.0 Sandbox Escape via Dunder Attribute Traversal
CVE-2026-74891 9.8 CRITICAL openssl_encrypt before 1.4.0 Hardcoded Database Credentials
CVE-2026-74895 9.8 CRITICAL openssl_encrypt before 1.4.0 Plugin Sandbox Bypass via Process Isolation
CVE-2026-74872 9.8 CRITICAL openssl_encrypt before 1.4.0 Arbitrary Code Execution via Whirlpool
CVE-2026-74899 9.8 CRITICAL openssl_encrypt before 1.4.0 Sandbox Escape via Type Hierarchy
CVE-2026-74875 9.8 CRITICAL openssl_encrypt before 1.4.0 Schema Validation Bypass
CVE-2026-74886 9.8 CRITICAL openssl_encrypt before 1.4.0 Plugin Import Guard Bypass
CVE-2026-74893 8.8 HIGH openssl_encrypt before 1.4.0 JWT Token Forgery via Hardcoded Secrets
CVE-2026-74877 8.8 HIGH openssl_encrypt before 1.4.0 Missing Ownership Verification via revoke_key
CVE-2026-74883 8.8 HIGH openssl_encrypt before 1.4.0 Sandbox Bypass via pathlib and io
CVE-2026-74884 7.5 HIGH openssl_encrypt before 1.4.0 Path Traversal via plugin_id
CVE-2026-74874 7.5 HIGH openssl_encrypt before 1.4.0 Weak PRNG Steganography Pixel Selection
CVE-2026-74879 7.5 HIGH openssl_encrypt before 1.4.0 Information Disclosure via /ready endpoint

Showing top 20 of 30 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: openssl_encrypt
Same vendor: jahlives
Same weakness: CWE-327

V. Comments for CVE-2026-74888

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