CVE-2026-107761 GitroomHQ CVE debrief

Who should care

Postiz application administrators, users with lower roles, and security teams responsible for monitoring and protecting API access should assess their exposure and take mitigation steps.

Why it matters

CVE-2026-107761 exposes sensitive information in Postiz application's API responses, potentially allowing unauthorized access and exploitation. Defenders should verify exposure, especially for administrators and users with lower roles, and prioritize mitigation and monitoring.

• Potential unauthorized access to sensitive information
• Possible exploitation of exposed API keys and tokens
• Need for verification of affected systems and users
• Priority for updating Postiz application to 2.25.1 or later

Technical summary

The Postiz application's API improperly exposes channel tokens and organization API keys through two endpoints: the public API's channel delete and the GET /user/organizations. This exposure could allow unauthorized access to sensitive information and potentially lead to further exploitation. The affected product is Postiz application, and the vulnerability class is improper exposure of sensitive information. The likely technical impact includes potential unauthorized access to sensitive information and possible exploitation of exposed API keys and tokens.

Defensive priority

Medium priority for defenders to verify and mitigate exposure, especially for Postiz application administrators and users with lower roles.

Recommended defensive actions

• Verify Postiz application version and ensure it is updated to 2.25.1 or later
• Restrict access to sensitive API endpoints
• Monitor API logs for suspicious activity
• Consider implementing additional security measures such as API key rotation and token revocation
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and source item provide details on the exposed API endpoints and potential impact. However, further verification is needed to determine the actual scope of affected systems and users. The evidence is limited to the provided CVE record and source item. Defenders should verify the Postiz application version and ensure it is updated to 2.25.1 or later. They should also restrict access to sensitive API endpoints and monitor API logs for suspicious activity. Additional security measures such as API key rotation and token rev

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.