# Komari management interface CSRF with missing SameSite attribute

Source: https://junglewise.ai/threats/go-2026-6449-komari-management-interface-csrf-in-github-com-komari-bf436c1d  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-16. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

Severity: info · Published 2026-09-16

Komari is a server monitoring and client management platform. The administrative interface is vulnerable to cross-site request forgery attacks because session cookies lack SameSite and Secure attributes. An attacker can trick an authenticated administrator into visiting a malicious website to execute arbitrary commands on managed systems, disable security features, or delete monitoring data.

Technologies: [github.com/komari-monitor/komari (Go)](https://junglewise.ai/threats/technologies/github-com-komari-monitor-komari). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Informational severity, published 16 September 2026.

**Which products and versions are affected?** github.com/komari-monitor/komari (Go) SEMVER:introduced=0,fixed=0.0.0-20260609084633-98122fa4d110; Komari-Monitor Komari <= 1.2.0.

**Is there a fix for This vulnerability?** Yes. github.com/komari-monitor/komari (Go): upgrade to 0.0.0-20260609084633-98122fa4d110 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is This vulnerability attacked?** It is attacked over the network, in a network appliance.

**Am I affected?** Check whether you run github.com/komari-monitor/komari (Go) or Komari-Monitor Komari 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.

## How to fix

- github.com/komari-monitor/komari (Go): upgrade to 0.0.0-20260609084633-98122fa4d110 or later

  ```sh
  go get github.com/komari-monitor/komari@v0.0.0-20260609084633-98122fa4d110
  ```


## Technical details

The session_token cookie is set without SameSite or Secure attributes, and all /api/admin/ endpoints rely solely on cookie-based authentication with no CSRF token validation. While modern browsers (Chrome 80+, Firefox 103+, Safari) default to SameSite=Lax and mitigate exploitation via cross-site HTML forms, the vulnerability remains exploitable through legacy browsers, man-in-the-middle attacks over HTTP, and same-origin XSS contexts. High-impact operations including arbitrary command execution, 2FA disabling, and configuration modification are reachable.

## Affected products

- komari-monitor Komari <= 1.2.0

## Timeline

- 2026-06-20: disclosed
- 2026-06-09: patched: Release 1.2.2

## References

- [https://github.com/komari-monitor/komari/security/advisories/GHSA-hxjg-93wc-h8p8](https://github.com/komari-monitor/komari/security/advisories/GHSA-hxjg-93wc-h8p8)
- [https://github.com/komari-monitor/komari/releases/tag/1.2.2](https://github.com/komari-monitor/komari/releases/tag/1.2.2)

## Related threats

- [Komari management interface CSRF](https://junglewise.ai/threats/komari-management-interface-csrf-b9b45191)
- [GO-2025-3873 - Komari vulnerable to 2FA Authentication Bypass in github.com/komari-monitor/komari](https://junglewise.ai/threats/go-2025-3873-komari-vulnerable-to-2fa-authentication-bypass-in-github-4d6d91a4)
- [GO-2025-3874 - Komari vulnerable to Cross-site WebSocket Hijacking in github.com/komari-monitor/komari](https://junglewise.ai/threats/cve-2025-55300-komari-vulnerable-to-cross-site-websocket-hijacking)
- [Komari vulnerable to 2FA Authentication Bypass](https://junglewise.ai/threats/komari-vulnerable-to-2fa-authentication-bypass-eea596eb)