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CVE-2026-45413— MaxKB: Unsalted MD5 Password Hashing

Quick assessment

Affected
1Panel-dev MaxKB
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.

MaxKB是1Panel-dev开源的一款基于大语言模型和 RAG 的开源知识库问答系统。 MaxKB 2.9.1之前版本存在安全漏洞，该漏洞源于用户密码使用未加盐的MD5哈希存储，可能导致通过彩虹表或GPU加速暴力破解轻松破解。

AI Predicted 7.5 Difficulty: Easy EPSS 0.08% · P0

Possible ATT&CK Techniques 1 AI

T1552.004 · Private Keys

Affected Version Matrix 1

VendorProduct Version RangeStatus
1Panel-dev MaxKB < 2.9.1 affected
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I. Basic Information for CVE-2026-45413

Vulnerability Information
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Vulnerability Title
MaxKB: Unsalted MD5 Password Hashing
Source: CVE Program / CVE List V5
Vulnerability Description
MaxKB is an open-source AI assistant for enterprise. Prior to 2.9.1, user passwords are stored using unsalted MD5 hashes, making them trivially crackable via rainbow tables or GPU-accelerated brute force (hashcat). This vulnerability is fixed in 2.9.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
可逆的单向哈希
Source: CVE Program / CVE List V5
Vulnerability Title
MaxKB 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MaxKB是1Panel-dev开源的一款基于大语言模型和 RAG 的开源知识库问答系统。 MaxKB 2.9.1之前版本存在安全漏洞，该漏洞源于用户密码使用未加盐的MD5哈希存储，可能导致通过彩虹表或GPU加速暴力破解轻松破解。
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
1Panel-dev MaxKB < 2.9.1 -

II. Public POCs for CVE-2026-45413

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III. Intelligence Information for CVE-2026-45413

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Vendor Advisories for CVE-2026-45413 (1)

Same Patch Batch · 1Panel-dev · 2026-05-26 · 6 CVEs total

CVE-2026-44847 7.5 HIGH MaxKB: Webhook Trigger Authentication Bypass
CVE-2026-42337 MaxKB: Broken Access Control in MaxKB OSS URL Fetch API
CVE-2026-42336 MaxKB: SSRF Bypass via DNS Rebinding in MaxKB OSS URL Fetch
CVE-2026-42335 MaxKB: SSRF Bypass in MaxKB OSS URL Fetch due to URL Parsing Discrepancy
CVE-2026-45412 MaxKB: Unauthenticated SSRF via Workflow Template Import

IV. Related Vulnerabilities

Same product: MaxKB
Same vendor: 1Panel-dev
Same weakness: CWE-328

V. Comments for CVE-2026-45413

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