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CVE-2026-74871— openssl_encrypt before 1.4.6 KDF Bypass via Sequential-XOR

CVSS 6.2 · Medium

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-74871

Vulnerability Information
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Vulnerability Title
openssl_encrypt before 1.4.6 KDF Bypass via Sequential-XOR
Source: CVE Program / CVE List V5
Vulnerability Description
openssl_encrypt versions before 1.4.6 contain a key derivation flaw in sequential XOR composition mode where the last stage cancels out during key generation. When configured with a single KDF and no prior hashing stage, attackers can bypass memory-hard key derivation and perform offline password cracking at SHA-256 speed instead of the configured KDF cost.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/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

VendorProductAffected VersionsCPESubscribe
jahlivesopenssl_encrypt 0 ~ 1.4.6 -

II. Public POCs for CVE-2026-74871

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III. Intelligence Information for CVE-2026-74871

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Vendor Advisories for CVE-2026-74871 (2)

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

CVE-2026-748789.8 CRITICALopenssl_encrypt before 1.4.0 TOTP Rate Limiter Bypass
CVE-2026-749019.8 CRITICALopenssl_encrypt before 1.4.0 Authentication Bypass via AES-CTR Fallback
CVE-2026-749009.8 CRITICALopenssl_encrypt before 1.4.0 Weak Shared Secret via PQC Simulation Mode
CVE-2026-748899.8 CRITICALopenssl_encrypt before 1.4.0 Weak Key Derivation via HKDF
CVE-2026-748809.8 CRITICALopenssl_encrypt before 1.4.0 Token Leakage via Query Parameters
CVE-2026-748949.8 CRITICALopenssl_encrypt before 1.4.0 Authentication Bypass via Bearer Token
CVE-2026-748769.8 CRITICALopenssl_encrypt before 1.4.0 Unverified Key Bundle Encryption
CVE-2026-748969.8 CRITICALopenssl_encrypt before 1.4.0 Sandbox Escape via Dunder Attribute Traversal
CVE-2026-748759.8 CRITICALopenssl_encrypt before 1.4.0 Schema Validation Bypass
CVE-2026-748919.8 CRITICALopenssl_encrypt before 1.4.0 Hardcoded Database Credentials
CVE-2026-748959.8 CRITICALopenssl_encrypt before 1.4.0 Plugin Sandbox Bypass via Process Isolation
CVE-2026-748729.8 CRITICALopenssl_encrypt before 1.4.0 Arbitrary Code Execution via Whirlpool
CVE-2026-748999.8 CRITICALopenssl_encrypt before 1.4.0 Sandbox Escape via Type Hierarchy
CVE-2026-748869.8 CRITICALopenssl_encrypt before 1.4.0 Plugin Import Guard Bypass
CVE-2026-748938.8 HIGHopenssl_encrypt before 1.4.0 JWT Token Forgery via Hardcoded Secrets
CVE-2026-748778.8 HIGHopenssl_encrypt before 1.4.0 Missing Ownership Verification via revoke_key
CVE-2026-748838.8 HIGHopenssl_encrypt before 1.4.0 Sandbox Bypass via pathlib and io
CVE-2026-748847.5 HIGHopenssl_encrypt before 1.4.0 Path Traversal via plugin_id
CVE-2026-748797.5 HIGHopenssl_encrypt before 1.4.0 Information Disclosure via /ready endpoint
CVE-2026-748827.5 HIGHopenssl_encrypt before 1.4.0 Insecure Default Configuration

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

IV. Related Vulnerabilities

Same product: openssl_encrypt
Same vendor: jahlives
Same weakness: CWE-916

V. Comments for CVE-2026-74871

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