CVE-2026-111321 in TaskingAI
Summary
by MITRE • 10/16/2026
TaskingAI through 0.3.0 contains a server-side request forgery vulnerability that allows authenticated attackers to make the backend send arbitrary HTTP requests by supplying an unvalidated OpenAPI servers[0].url in a user-defined action. Attackers holding a project API key or console admin login can create an action pointing to loopback, internal or cloud metadata addresses and run it via POST /actions/{action_id}/run to read back up to 64 KiB of responses.
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Analysis
by VulDB Data Team • 10/16/2026
TaskingAI versions through 0.3.0 are susceptible to a server-side request forgery vulnerability that stems from insufficient validation of user-supplied input within the application's action configuration mechanism. This flaw specifically affects how the backend processes OpenAPI specifications, particularly when an attacker defines a custom action with a maliciously crafted servers[0].url parameter. Because the system fails to adequately sanitize or restrict this URL field, authenticated users can manipulate the server into initiating HTTP requests to arbitrary destinations controlled by the attacker rather than intended external services.
The operational impact of this vulnerability is significant for any organization utilizing TaskingAI with exposed administrative privileges or project-level API keys. An adversary possessing a valid project API key or console administrator credentials can exploit this flaw to force the backend system to communicate with internal network resources, loopback interfaces such as 127.0.0.1, or cloud provider metadata endpoints like those found in AWS EC2 instance metadata service or Azure managed identity endpoints. By executing these actions via a POST request to the /actions/{action_id}/run endpoint, attackers can retrieve up to 64 KiB of response data from these internal targets. This capability effectively transforms the vulnerable application into a proxy for accessing sensitive internal infrastructure that is typically isolated from direct internet access.
This vulnerability aligns with CWE-918, which classifies server-side request forgery as a critical flaw where web applications construct URLs or requests based on user input without proper validation. Furthermore, in the context of the MITRE ATT&CK framework, this behavior corresponds to T1534, known as Internal Service Scanning, and potentially T1078, Valid Accounts, since exploitation requires prior authentication through API keys or admin logins. The ability to read metadata responses is particularly dangerous as it often yields temporary security credentials, access tokens, and configuration details that can be leveraged for further lateral movement within the cloud environment.
To mitigate this risk, immediate updates to TaskingAI beyond version 0.3.0 are recommended if a patch has been released by the vendor. In the interim, organizations should enforce strict allow-lists on any URL fields used in action configurations, ensuring that only known and trusted domains can be accessed. Additionally, implementing network-level controls such as firewall rules to block outbound requests from application servers to internal metadata endpoints or loopback addresses provides a robust defense-in-depth strategy. Restricting the creation of custom actions to highly privileged users who have undergone rigorous security training further reduces the attack surface for this type of exploitation.