CVE-2026-114374 in wiki-go
Summary
by MITRE • 10/21/2026
A vulnerability was identified in leomoon-studios wiki-go up to 1.9.1. This impacts an unknown function of the file internal/handlers/metadata_api.go of the component fetch-metadata Endpoint. Such manipulation leads to server-side request forgery. It is possible to launch the attack remotely. The exploit is publicly available and might be used. Upgrading to version 1.9.2 will fix this issue. The name of the patch is 25498ebf5c012b870967e38eec2a1e5133fa1a83. Upgrading the affected component is recommended.
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Analysis
by VulDB Data Team • 10/21/2026
The vulnerability identified in leomoon-studios wiki-go versions up to 1.9.1 represents a critical server-side request forgery flaw located within the fetch-metadata endpoint handler found in internal/handlers/metadata_api.go. This security defect allows an attacker to manipulate input parameters that are processed by this specific function, leading to unauthorized outbound HTTP requests initiated from the vulnerable application's context. The core technical issue stems from insufficient validation of user-supplied data before it is used to construct outgoing network connections. By crafting a malicious request with carefully controlled host and port values within metadata fields or related query parameters, an attacker can force the server to connect to arbitrary destinations under its control. This behavior aligns directly with CWE-918, which defines Server-Side Request Forgery as a class of vulnerabilities where a web application fetches a remote resource without validating the user-supplied URL. The flaw is particularly dangerous because it leverages the trust relationship between the server and internal or external services that may be accessible only from within the network perimeter.
The operational impact of this vulnerability is significant due to its potential for remote exploitation. Since the attack vector is over the network, a threat actor does not need prior authentication or physical access to execute the exploit. The public availability of proof-of-concept code further exacerbates the risk landscape, as it lowers the barrier to entry for less sophisticated attackers who may seek to leverage this flaw for broader malicious purposes. Common use cases for such SSRF attacks include scanning internal network services that are not exposed to the internet, bypassing access controls by accessing localhost interfaces of other running applications, or exfiltrating sensitive data from cloud metadata endpoints if the application is deployed in a cloud environment. In some scenarios, this vulnerability could serve as an initial foothold for more complex attack chains involving lateral movement within a compromised network segment. The presence of publicly available exploits means that automated scanning tools and opportunistic attackers are likely to target systems running affected versions immediately upon discovery.
Mitigation strategies must prioritize immediate remediation through software updates. The recommended course of action is to upgrade leomoon-studios wiki-go to version 1.9.2 or later, which incorporates the fix identified by patch hash 25498ebf5c012b870967e38eec2a1e5133fa1a83. This update addresses the underlying logic error in metadata_api.go that permits unvalidated URL construction. In environments where immediate upgrading is not feasible, organizations should implement network-level controls such as firewall rules or reverse proxy configurations to restrict outbound connections from the application server to only known and necessary destinations. Additionally, implementing strict input validation on all user-supplied URLs before they are processed by backend services can provide a layer of defense in depth. Security teams should also monitor logs for unusual outbound traffic patterns originating from this service, as such activity may indicate active exploitation attempts. Regular vulnerability assessments and penetration testing focused on SSRF vectors are essential to ensure that similar flaws do not persist in other components of the application architecture.