Quick answers
- Is CVE-2026-109402 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-109402 being exploited in the wild.
- How severe is CVE-2026-109402?
- Medium severity, with a CVSS score of 6.3, published 13 October 2026.
- Which products and versions are affected?
- Conductor-Oss Conductor 3.22.0.
- Is there a fix for CVE-2026-109402?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-109402 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-109402?
- Check whether you run Conductor-Oss Conductor at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The MCPService.listTools function in the MCP Service component fails to properly validate the mcpServer argument, allowing an attacker to inject arbitrary values that are used in server-side requests. This SSRF vulnerability can be exploited remotely without authentication to forge requests to internal or external systems. The vulnerability was publicly disclosed and proof-of-concept code is available.
Affected products
- conductor-oss conductor 3.22.0
Timeline
- 2026-10-13: disclosed