CVE-2026-17531: Droidclaw Auth Bypass Vulnerability

CVE-2026-17531 Overview

CVE-2026-17531 is an authorization bypass vulnerability affecting unitedbyai droidclaw through version 0.5.3. The flaw resides in an unknown function within the server/src/routes/goals.ts file, specifically in the Unsigned Scheduled Callback component. Attackers can manipulate this component to bypass authorization controls remotely. The exploit code has been published, though successful exploitation requires high attack complexity. The maintainers were notified through a public issue report but have not responded at the time of disclosure. This weakness is classified under CWE-285: Improper Authorization.

Critical Impact
Remote authorization bypass allows attackers with low privileges to access resources or execute actions in droidclaw that should require higher authorization.

Affected Products

unitedbyai droidclaw versions up to and including 0.5.3
Component: Unsigned Scheduled Callback in server/src/routes/goals.ts
Deployments exposing droidclaw's goals API endpoint to untrusted networks

Discovery Timeline

2026-07-27 - CVE-2026-17531 published to the National Vulnerability Database
2026-07-28 - Last updated in NVD database

Technical Details for CVE-2026-17531

Vulnerability Analysis

The vulnerability sits in the routing logic of droidclaw's goals module. The goals.ts route handler processes scheduled callback requests without verifying that the callback originates from a trusted, signed source. Because the callback is unsigned, an attacker who can reach the endpoint can invoke callback-driven code paths as if the request had been authorized. This bypasses the authorization checks that would normally apply to a user-initiated request. The result is unauthorized access to functionality tied to the goals workflow.

Root Cause

The root cause is improper authorization ([CWE-285]) in the scheduled callback path. The application accepts callback invocations without cryptographically validating the caller or the payload. Trust is placed on the callback channel itself rather than on a signed token or authenticated identity. Any request that matches the expected shape is processed with the effective authorization of the scheduler.

Attack Vector

Exploitation is network-based and requires low privileges. An attacker crafts a request against the vulnerable route in server/src/routes/goals.ts and triggers the unsigned scheduled callback. The attack is rated high complexity because the attacker must understand the callback contract and produce a valid request shape. Public exploit code exists, which lowers the barrier for adversaries willing to adapt it. Refer to the VulDB entry for CVE-2026-17531 and the droidclaw issue tracker for additional context.

No verified proof-of-concept code is available for direct inclusion. The exploit flow, as described in the public disclosure, involves issuing a network request to the goals route that mimics a scheduler-issued callback, causing the handler to execute privileged logic without authorization enforcement.

Detection Methods for CVE-2026-17531

Indicators of Compromise

Unexpected HTTP requests to the goals route handler in droidclaw originating from external or non-scheduler IP addresses
Successful callback-triggered actions in goals.ts without a corresponding authenticated user session
State changes to goal objects that do not map to a preceding authorized user action

Detection Strategies

Instrument the goals route to log the origin, headers, and identity context of every callback invocation for review
Compare callback invocation frequency against the known schedule; deviations indicate injected requests
Correlate application logs with authentication events to flag callback-driven mutations that lack a user principal

Monitoring Recommendations

Monitor reverse proxy or ingress logs for direct requests to the goals endpoint from unexpected sources
Alert on repeated 2xx responses to callback URIs outside of the scheduler's execution window
Track outbound side effects, such as notifications or database writes, initiated by the goals route without a session identifier

How to Mitigate CVE-2026-17531

Immediate Actions Required

Restrict network access to the droidclaw goals endpoint to trusted internal networks or the scheduler host only
Place the droidclaw server behind an authenticating reverse proxy that enforces identity checks on all routes
Audit application logs for prior invocations of the unsigned callback path and validate any resulting state changes

Patch Information

No vendor patch is available. The project was notified through the droidclaw GitHub issue tracker but has not responded. Track the droidclaw repository for future releases that address the authorization check in server/src/routes/goals.ts.

Workarounds

Sign scheduled callback requests with an HMAC or JWT and reject unsigned invocations at the route handler
Bind the callback route to localhost or an internal network interface so it is unreachable from the public internet
Add an application-layer authorization middleware in front of the goals routes that requires an authenticated principal for every request

bash

# Example: restrict the droidclaw goals endpoint at the reverse proxy layer
location /api/goals {
    allow 127.0.0.1;
    allow 10.0.0.0/8;
    deny all;
    proxy_pass http://droidclaw_backend;
}