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CVE-2026-74876— openssl_encrypt before 1.4.0 Unverified Key Bundle Encryption

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PublicKeyBundle.from_dict()从不受信任的数据创建密钥包时未验证签名，攻击者可调用from_dict()和to_identity()利用攻击者控制的公钥加密数据，导致秘密泄露。

CVSS 9.8 · Critical EPSS 0.20% · P10

Possible ATT&CK Techniques 1 AI

T1030 · Data Transfer Size Limits

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-2026-74876

Vulnerability Information
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Vulnerability Title
openssl_encrypt before 1.4.0 Unverified Key Bundle Encryption
Source: CVE Program / CVE List V5
Vulnerability Description
openssl_encrypt versions before 1.4.0 contain a vulnerability in PublicKeyBundle.from_dict() that creates key bundles from untrusted data without verifying signatures. Attackers can call from_dict() followed by to_identity() without signature verification to encrypt data using attacker-controlled public keys, leaking secrets.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
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PublicKeyBundle.from_dict()从不受信任的数据创建密钥包时未验证签名，攻击者可调用from_dict()和to_identity()利用攻击者控制的公钥加密数据，导致秘密泄露。
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-2026-74876

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 11279 chars
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Exploit chain & mitigation
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III. Intelligence Information for CVE-2026-74876

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Vendor Advisories for CVE-2026-74876 (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-2026-74896 9.8 CRITICAL openssl_encrypt before 1.4.0 Sandbox Escape via Dunder Attribute Traversal
CVE-2026-74875 9.8 CRITICAL openssl_encrypt before 1.4.0 Schema Validation Bypass
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-2026-74886 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-2026-74879 7.5 HIGH openssl_encrypt before 1.4.0 Information Disclosure via /ready endpoint
CVE-2026-74882 7.5 HIGH openssl_encrypt before 1.4.0 Insecure Default Configuration
CVE-2026-74892 7.5 HIGH openssl_encrypt before 1.4.0 Hardcoded Secret Key

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-347

V. Comments for CVE-2026-74876

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