CVE-2026-11502: JeecgBoot Third-Party Login ThirdLoginController.java HttpServletResponse.sendRedirect redirect
A weakness has been identified in JeecgBoot up to 3.9.2. Impacted is the function HttpServletResponse.sendRedirect of the file jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/system/controller/ThirdLoginController.java of the component Third-Party Login. This manipulation of the argument state causes open redirect. The attack can be initiated remotely. A high degree of complexity is needed for the attack. The exploitability is considered difficult. The exploit has been made available to the public and could be used for attacks. The project replied: "After evaluation, this vulnerability has low exploitability in real-world scenarios: 1) Exploiting this vulnerability requires attackers to use social engineering techniques to induce victims to actively click on an OAuth login link constructed by the attacker; it cannot be triggered passively. 2) Third-party login (DingTalk/WeChat, etc.) is an optional feature and may not be enabled in most projects."
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Remove
Remove
jeecg-module-system/jeecg-system-biz (Third-Party Login / ThirdLoginController)from your environment.Uninstall or remove the Third-Party Login module/component if it is not required to avoid the open-redirect vulnerability in ThirdLoginController.
- Configuration
Disable the Third-Party Login feature (e.g., DingTalk/WeChat OAuth) if it is not required to eliminate the vulnerable redirect path in ThirdLoginController.
JeecgBoot Third-Party Login (ThirdLoginController in jeecg-module-system/jeecg-system-biz) Third-Party Login feature = disabled - Compensating control
Educate users and administrators that exploitation requires social engineering (clicking attacker-crafted OAuth/login links); instruct users not to click OAuth/login links from untrusted sources and limit use of external OAuth login links while a code fix is pending.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-11502?
The severity of CVE-2026-11502 is rated low with a score of 3.1.
How do I fix CVE-2026-11502?
To mitigate CVE-2026-11502, update JeecgBoot to the latest version that addresses this vulnerability.
What component is affected by CVE-2026-11502?
CVE-2026-11502 affects the Third-Party Login component in JeecgBoot up to version 3.9.2.
What functionality is compromised in CVE-2026-11502?
CVE-2026-11502 compromises the HttpServletResponse.sendRedirect function in the ThirdLoginController.java file.
Is user interaction required to exploit CVE-2026-11502?
Yes, user interaction is required for the successful exploitation of CVE-2026-11502.