CVE-2026-86506 in GoLand
Summary
by MITRE • 09/07/2026
In JetBrains GoLand before 2026.2.2.1 missing authentication on the GoLand profiler's injected pprof server exposed profiling data
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 09/07/2026
The vulnerability identified in JetBrains GoLand prior to version 2026.2.2.1 represents a critical security misconfiguration within the integrated development environment’s debugging and performance analysis tools. Specifically, the issue resides in the local profiler component that utilizes the pprof server for collecting runtime metrics from Go applications. The pprof tool is widely used by developers to analyze CPU usage, memory allocation, and goroutine states during application execution. In this instance, the injected pprof server was configured without implementing any form of authentication or access control mechanisms. This design flaw allows any process running on the same host machine with network loopback access to connect to the profiler endpoint and retrieve sensitive profiling data without providing credentials.
From a technical perspective, the absence of authentication relies on the assumption that local-only services are inherently secure because they are not exposed to external networks. However, this security through obscurity model is fundamentally flawed in modern operating systems where multiple processes can interact via localhost interfaces. An attacker with access to the victim’s machine, whether through direct physical access or a compromised user account, could exploit this open port to extract detailed information about the running Go application. This includes stack traces, heap dumps, and execution profiles that may reveal proprietary algorithms, internal logic flows, or sensitive data structures being processed in memory.
The operational impact of this vulnerability is significant for organizations relying on secure software development practices. The exposure of profiling data can lead to intellectual property theft, as attackers gain insight into the architectural decisions and performance bottlenecks of critical applications. Furthermore, detailed stack traces might expose internal API endpoints or database query structures that could be leveraged in subsequent attacks against the application itself. For developers working on sensitive projects, such as financial services or healthcare software, this leak compromises confidentiality requirements mandated by industry standards like GDPR or HIPAA if personal data is present in memory during profiling sessions.
This vulnerability aligns with CWE-287, which describes Improper Authentication, and falls under the ATT&CK technique T1059, Command and Scripting Interpreter, as it facilitates unauthorized access to system resources through local execution capabilities. It also relates to CWE-613, Insufficient Session Expiration, in a broader sense of session management within development tools, although the primary failure is the lack of initial authentication checks. The risk is exacerbated by the fact that IDEs often run with elevated privileges or have access to sensitive project files and environment variables, making any data leakage particularly dangerous.
To mitigate this vulnerability, users must upgrade JetBrains GoLand to version 2026.2.2.1 or later, where the developers have implemented proper authentication checks for the profiler’s HTTP endpoints. In environments where upgrading is not immediately feasible, administrators should restrict network access to loopback interfaces using host-based firewalls and ensure that only trusted processes can bind to local ports used by development tools. Additionally, organizations should enforce strict endpoint security policies to prevent unauthorized software execution on developer machines, thereby reducing the attack surface for local privilege escalation or data exfiltration attempts targeting IDE components.