CVE-2026-49992 kimai CVE debrief

Who should care

Defenders managing Kimai installations, particularly those with user roles having required permissions, should assess exposure and apply patches. This includes reviewing user roles and permissions, monitoring for suspicious activity, and verifying installation versions. Additionally, security teams and platform operators should be aware of the potential impacts on team, teamlead, and object-binding relationships.

Why it matters

CVE-2026-49992 is an authenticated cross-site request forgery issue in Kimai, allowing attackers to trick logged-in users into causing unauthorized changes. Defenders should prioritize verifying exposure, applying patches, and monitoring for suspicious activity.

• Potential unauthorized changes to team, teamlead, and object-binding relationships
• Required verification of Kimai installation version and user role permissions
• Potential impact on user trust and data integrity

Technical summary

CVE-2026-49992 is an authenticated cross-site request forgery issue in Kimai, affecting versions prior to 2.58.0. The vulnerability allows an attacker to trick a logged-in user with required permissions into visiting a malicious page, causing unauthorized changes to team, teamlead, and object-binding relationships. This issue arises from the application's default team creation shortcuts for projects, customers, and activities, which are exposed through `GET` routes and directly create or reuse a `Team`, add the current user as teamlead, and bind the target object to that team.

Defensive priority

Defenders should prioritize verifying exposure and applying patches for Kimai installations, focusing on user roles with required permissions.

Recommended defensive actions

• Verify Kimai installation version and apply patches if necessary
• Review user roles and permissions for required access levels
• Monitor for suspicious activity on team, teamlead, and object-binding relationships
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD entry provide details on the authenticated cross-site request forgery issue in Kimai. Vendor patch information is available. The issue is confirmed in versions prior to 2.58.0, and defenders should verify their installation versions. The CVE Program and NVD offer official guidance on this vulnerability. Additional information can be found in the Kimai security advisories.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.