# CVE-2026-64870: 1Panel-dev MaxKB SSRF in UpdateStoreTool

Source: https://junglewise.ai/threats/cve-2026-64870-1panel-dev-maxkb-ssrf-in-updatestoretool  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-30. Updated: 2026-07-30  
License: CC BY 4.0 with a link back

CVE-2026-64870 · Severity: info · CVSS 5.3 · Published 2026-07-30

MaxKB is an open-source AI assistant platform for enterprises. A security flaw in the tool update component allows an authorized user to force the server to send requests to internal network locations, such as private databases or cloud metadata services. This could lead to the exposure of sensitive internal infrastructure details or unauthorized access to internal services.

Technologies: [1Panel-dev MaxKB](https://junglewise.ai/threats/technologies/maxkb). Vendors: [1Panel-dev](https://junglewise.ai/threats/vendors/1panel-dev).

## Quick answers

**Is CVE-2026-64870 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-64870 being exploited in the wild.

**How severe is CVE-2026-64870?** Informational severity, with a CVSS score of 5.3, published 30 July 2026.

**Which products and versions are affected?** 1Panel-dev MaxKB 2.0.0 - 2.10.4-lts.

**Is there a fix for CVE-2026-64870?** A patch was published on 2026-07-28: Fix committed to the v2 branch repository Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-64870 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-64870?** 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

A Server-Side Request Forgery (SSRF) vulnerability exists in MaxKB versions 2.0.0 through 2.10.4-lts within the `UpdateStoreTool.update_tool` function. The application fails to validate the `download_url` and `download_callback_url` parameters before passing them to the `requests.get` method. An authenticated workspace user can provide malicious URLs pointing to loopback addresses, internal network services, or cloud metadata endpoints (e.g., 169.254.169.254). While the application enforces host-locking in other components, this specific path lacks equivalent trusted-host or redirect validation. A fix involving centralized URL validation has been committed to the v2 branch but may not be in all published releases.

## Affected products

- 1Panel-dev MaxKB 2.0.0 - 2.10.4-lts

## Timeline

- 2026-07-27: disclosed: Initial advisory publication on GitHub
- 2026-07-28: patched: Fix committed to the v2 branch repository
- 2026-07-30: advisory: CVE-2026-64870 published to NVD

## References

- [https://github.com/1Panel-dev/MaxKB/commit/a96a4fc17051d80e5b90a632ad8ec851d7d24b58](https://github.com/1Panel-dev/MaxKB/commit/a96a4fc17051d80e5b90a632ad8ec851d7d24b58)
- [https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-7xxm-gqxv-ph3v](https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-7xxm-gqxv-ph3v)

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- [MaxKB cross-workspace model parameter form write](https://junglewise.ai/threats/cve-2026-77523-maxkb-is-an-open-source-ai-assistant-for-enterprise-in-version-2)
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