CVE-2026-50165— alf.io has Improper Access Control for Organization Owners that Exposes System Secrets
Quick assessment
Affected
alfio-event alf.io
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.
alf.io 是一个用于会议、贸易展、研讨会和线下活动的开源票务预订系统。在 2.0-M5-2605 之前的版本中，存在一个不当访问控制问题：组织所有者可以通过组织和事件范围内的“单一配置”端点读取系统级配置中的敏感信息。这些受影响的端点要求拥有者身份，但它们接受任意配置键，并返回从包含系统级配置的查找表中匹配到的第一个值。因此，组织所有者可以获取原本仅管理员可见的秘密信息，其中包括（当系统 API 密钥被配置时）系统 API 密钥。该问题已在 2.0-M5-2605 版本中修复。
Possible ATT&CK Techniques 1 AI
T1210 · Exploitation of Remote Services
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I. Basic Information for CVE-2026-50165
Vulnerability Information
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Vulnerability Title
alf.io has Improper Access Control for Organization Owners that Exposes System Secrets
Source: CVE Program / CVE List V5
Vulnerability Description
alf.io is an open source ticket reservation system for conferences, trade shows, workshops, and meetups. An Improper Access Control issue in versions prior to 2.0-M5-2605 allows an organization owner to read system-level configuration secrets through organization/event scoped "single configuration" endpoints. The affected endpoints require organization or event ownership, but they accept an arbitrary configuration key and then return the first matching value from a lookup that includes system-level configuration. As a result, an organization owner can retrieve secrets intended to be administrator-only, including the system API key when it is configured. Version 2.0-M5-2605 fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| alfio-event | alf.io | < 2.0-M5-2606 | - |
|
II. Public POCs for CVE-2026-50165
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-50165 (1)
IV. Related Vulnerabilities
Same product: alf.io
-
CVE-2026-41412
alf.io vulnerable to Arbitrary File Read and Exfil via simpl -
CVE-2026-35482
alf.io has an Authenticated RCE via Extension Script Sandbox -
CVE-2024-45300
Bypassing promo code limitations with race conditions -
CVE-2024-45299
alf.io's preloaded data as json is not escaped correctly -
CVE-2024-25634
IDOR make user can read e-mail log sent by other events
Same vendor: alfio-event
-
CVE-2026-41412
alf.io vulnerable to Arbitrary File Read and Exfil via simpl -
CVE-2026-35482
alf.io has an Authenticated RCE via Extension Script Sandbox -
CVE-2024-45300
Bypassing promo code limitations with race conditions -
CVE-2024-45299
alf.io's preloaded data as json is not escaped correctly -
CVE-2024-25634
IDOR make user can read e-mail log sent by other events
Same weakness: CWE-284
-
CVE-2026-86774
Snipe-IT before 8.7.0 Broken Access Control via AssetModelPo -
CVE-2026-19625
IBM Enterprise Build of Quarkus is affected by multiple vuln -
CVE-2026-75998
ColdFusion | Improper Access Control (CWE-284) -
CVE-2026-77487
SQL Server Elevation of Privilege Vulnerability -
CVE-2026-73028
SQL Server Elevation of Privilege Vulnerability
V. Comments for CVE-2026-50165
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