Quick answers
- Is CVE-2026-77518 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-77518 being exploited in the wild.
- How severe is CVE-2026-77518?
- Medium severity, with a CVSS score of 5, published 21 September 2026.
- Which products and versions are affected?
- 1Panel-dev MaxKB 2.10.2-lts and earlier.
- Is there a fix for CVE-2026-77518?
- 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-2026-77518 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-77518?
- Check whether you run 1Panel-dev MaxKB 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 tool-detail API route lacks per-resource authorization checks, allowing an authenticated user to retrieve a known tool_id and expose Tool.code containing MCP server configuration. Additionally, workflow mcp-nodes accept foreign mcp_tool_id references without verifying the workflow owner's permission to use that tool, enabling privilege amplification during workflow debug execution. The vulnerability requires the attacker to be a legitimate workspace user who knows the target tool's ID.
Affected products
- 1Panel-dev MaxKB 2.10.2-lts and earlier
Timeline
- 2026-09-21: disclosed