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CVE-2026-40941— Cacti: Package Import Signature Validation Bypass Allows Self-Signed Packages

Quick assessment

Affected
Cacti cacti
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.

Cacti是Cacti团队开源的一款日志分析与审计软件。 Cacti 1.2.30及之前版本存在加密问题漏洞，该漏洞源于包导入签名验证绕过，允许使用自签名包。

AI Predicted 5.6 Difficulty: Easy EPSS 0.27% · P16

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Cacti cacti < 1.2.31 affected
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I. Basic Information for CVE-2026-40941

Vulnerability Information
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Vulnerability Title
Cacti: Package Import Signature Validation Bypass Allows Self-Signed Packages
Source: CVE Program / CVE List V5
Vulnerability Description
Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior have a package import signature validation bypass allows which allows self-signed packages. This issue has been fixed in version 1.2.31.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
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
Cacti 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cacti是Cacti团队开源的一款日志分析与审计软件。 Cacti 1.2.30及之前版本存在加密问题漏洞，该漏洞源于包导入签名验证绕过，允许使用自签名包。
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
Cacti cacti < 1.2.31 -

II. Public POCs for CVE-2026-40941

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III. Intelligence Information for CVE-2026-40941

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Patches & Fixes for CVE-2026-40941 (2)

Vendor Advisories for CVE-2026-40941 (1)

Same Patch Batch · Cacti · 2026-06-25 · 5 CVEs total

CVE-2026-40083 7.2 HIGH Cacti: SQL Injection in managers.php
CVE-2026-40084 6.5 MEDIUM Cacti: Arbitrary File Read via Path Traversal in Report `format_file` Parameter
CVE-2026-40080 6.1 MEDIUM Cacti: Open Redirect via HTTP_REFERER substring check in auth_login_redirect
CVE-2026-40082 5.4 MEDIUM Cacti: Session Fixation via missing session_regenerate_id() after login

IV. Related Vulnerabilities

Same product: cacti
Same vendor: Cacti
Same weakness: CWE-347

V. Comments for CVE-2026-40941

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