CVE-2026-33266— Apache OpenMeetings: Hardcoded Remember-Me Cookie Encryption Key and Salt
Quick assessment
Affected
Apache Software Foundation Apache OpenMeetings
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.
Apache OpenMeetings是美国阿帕奇（Apache）基金会的一套多语言可定制的视频会议和协作系统。该产品支持音频、视频并允许用户查看每个与会者的桌面等。 Apache OpenMeetings 9.0.0之前版本存在安全漏洞，该漏洞源于使用硬编码加密密钥，可能导致攻击者窃取登录用户的cookie后获取完整用户凭据。
Possible ATT&CK Techniques 1 AI
T1552.005 · Cloud Instance Metadata API
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I. Basic Information for CVE-2026-33266
Vulnerability Information
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Vulnerability Title
Apache OpenMeetings: Hardcoded Remember-Me Cookie Encryption Key and Salt
Source: CVE Program / CVE List V5
Vulnerability Description
Use of Hard-coded Cryptographic Key vulnerability in Apache OpenMeetings.
The remember-me cookie encryption key is set to default value in openmeetings.properties and not being auto-rotated. In case OM admin hasn't changed the default encryption key, an attacker who has stolen a cookie from a logged-in user can get full user credentials.
This issue affects Apache OpenMeetings: from 6.1.0 before 9.0.0.
Users are recommended to upgrade to version 9.0.0, which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的密码学密钥
Source: CVE Program / CVE List V5
Vulnerability Title
Apache OpenMeetings 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache OpenMeetings是美国阿帕奇（Apache）基金会的一套多语言可定制的视频会议和协作系统。该产品支持音频、视频并允许用户查看每个与会者的桌面等。 Apache OpenMeetings 9.0.0之前版本存在安全漏洞，该漏洞源于使用硬编码加密密钥，可能导致攻击者窃取登录用户的cookie后获取完整用户凭据。
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 |
|---|---|---|---|---|
| Apache Software Foundation | Apache OpenMeetings | 6.1.0 ~ 9.0.0 | - |
|
II. Public POCs for CVE-2026-33266
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Apache Software Foundation · 2026-04-09 · 17 CVEs total
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| CVE-2026-34486 | Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor | |
| CVE-2026-34483 | Apache Tomcat: Incomplete escaping of JSON access logs | |
| CVE-2026-32990 | Apache Tomcat: Fix for CVE-2025-66614 is incomplete | |
| CVE-2026-29146 | Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default | |
| CVE-2026-29145 | Apache Tomcat, Apache Tomcat Native: OCSP checks sometimes soft-fail even when soft-fail i | |
| CVE-2026-29129 | Apache Tomcat: TLS cipher order is not preserved | |
| CVE-2026-25854 | Apache Tomcat: Occasionally open redirect | |
| CVE-2026-24880 | Apache Tomcat: Request smuggling via invalid chunk extension | |
| CVE-2026-40046 | Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT: Missing fix for CVE-2025-66168 | |
| CVE-2026-33005 | Apache OpenMeetings: Insufficient checks in FileWebService | |
| CVE-2026-34020 | Apache OpenMeetings: Login Credentials Passed via GET Query Parameters | |
| CVE-2025-57735 | Apache Airflow: Airflow Logout Not Invalidating JWT | |
| CVE-2025-62188 | Apache DolphinScheduler: Users can access sensitive information through the actuator endpo | |
| CVE-2026-34538 | Apache Airflow: Authorization bypass in DagRun wait endpoint (XCom exposure) |
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V. Comments for CVE-2026-33266
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