Obot: Server-Side Request Forgery via remote MCP server URL
- Product
- Obot
- Affected
- Obot <= v0.22.1
- Fixed in
- 0.23.0
Last verified against sources: October 26, 2026
Am I affected?
Obot: affected Obot <= v0.22.1. Fixed in 0.23.0.
- Check your version: run
go list -m github.com/obot-platform/obot. Versions < 0.23.0 of github.com/obot-platform/obot are affected. [1]
What to do now
- Upgrade to the fixed version: run
go get github.com/obot-platform/obot@v0.23.0(first patched version 0.23.0). [1] - Upgrade to v0.23.0 or later. [1]
General practice, not from the source: if the affected software could read tokens or credentials, rotate them after upgrading; pin versions and review changes before updating tools your agents run.
What happened
- A remote MCP server's URL is set by the user at registration, and Obot fetches that URL from its own server without checking where it points. [1]
- Obot blocks none of loopback, private network ranges, or the cloud metadata address 169.254.169.254. [1]
- The fetch also runs automatically when Obot reconciles servers, so registering the server is enough to trigger it. [1]
Impact
- An attacker with the Power User, Power User Plus, or Admin role can make Obot send requests to internal-only services. [1]
- The attacker can read the response, because Obot shows the fetched body in its error messages. [1]
- Against the cloud metadata address 169.254.169.254, this can expose the host's cloud IAM credentials and let the attacker move into the cloud account. [1]
What was done
Sources
- GHSA-jgh3-fggc-mcpm — GitHub Advisory Database
Every statement above was checked against these sources before publishing. Spotted an error? Tell us and we will correct it with a dated note.
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Obot: Server-Side Request Forgery via remote MCP server URL
Product: Obot | Affected: Obot <= v0.22.1 | Fixed in: 0.23.0
Summary: A remote MCP server's URL is set by the user at registration, and Obot fetches that URL from its own server without checking where it points.
Source & remediation on AgentArmorHQ: https://agentarmorhq.com/incidents/2026/09/ghsa-jgh3-fggc-mcpm-obotCorrections
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