CVE-2026-63146 Omnispace CVE debrief

Who should care

Defenders responsible for Omnispace Agora Project installations, particularly those using versions prior to 26.10.0, should assess exposure and take immediate action to update or mitigate the vulnerability. This includes IT administrators, security teams, and developers working with the Agora Project.

Why it matters

CVE-2026-63146 is a critical vulnerability in Omnispace Agora Project versions prior to 26.10.0, allowing for PHP code injection and unauthenticated remote code execution. Defenders should assess exposure, prioritize updates, and implement compensating controls to prevent exploitation.

• Unauthenticated remote code execution on the underlying system
• Potential for attackers to inject arbitrary PHP code into config.inc.php
• Need for immediate updates or compensating controls to prevent exploitation
• Verification of system configurations and monitoring for potential exploitation attempts

Technical summary

The Omnispace Agora Project versions prior to 26.10.0 are vulnerable to PHP code injection via the config.inc.php file. This vulnerability is caused by unescaped, attacker-controlled values being written into the configuration file during installation, combined with an SQL injection issue enabled by PDO::ATTR_EMULATE_PREPARES supporting stacked queries. Attackers can exploit this vulnerability to re-trigger the installer and inject arbitrary PHP code into config.inc.php, achieving unauthenticated remote code execution on the underlying system.

Defensive priority

High priority should be given to updating Omnispace Agora Project to version 26.10.0 or later. Defenders should assess exposure, verify system configurations, and implement compensating controls where immediate updates are not feasible.

Recommended defensive actions

• Update Omnispace Agora Project to version 26.10.0 or later
• Assess exposure and verify system configurations
• Implement compensating controls where immediate updates are not feasible
• Monitor for potential exploitation attempts
• Review 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and source item provide details on the vulnerability, including its critical CVSS score of 9.3, affected versions, and potential impact. However, specific details about exploitation or victim organizations are not provided.

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.