CVE-2026-73616 openremote CVE debrief

Who should care

Defenders responsible for OpenRemote deployments should assess exposure and verify configurations to mitigate potential risks. This includes administrators with write:admin roles, who should be aware of the vulnerability and take steps to prevent unauthorized notification deletion. Additionally, security teams and vulnerability management teams should review the vulnerability and implement compensating controls for exposed systems.

Why it matters

CVE-2026-73616 allows unauthorized notification deletion across realms in OpenRemote, impacting administrators with write:admin roles.

• Potential unauthorized notification deletion.
• Cross-realm access risks for administrators.

Technical summary

OpenRemote notification deletion endpoints fail to enforce realm boundaries, allowing any realm administrator to delete notifications belonging to other realms. This vulnerability impacts administrators with write:admin roles, who can send DELETE requests to remove notifications from the master realm or other tenants without authorization checks. The issue requires defenders to prioritize verifying and mitigating OpenRemote notification deletion endpoint vulnerabilities to prevent unauthorized notification deletion.

Defensive priority

Defenders should prioritize verifying and mitigating OpenRemote notification deletion endpoint vulnerabilities.

Recommended defensive actions

• Verify OpenRemote notification deletion endpoint configurations.
• Implement proper authorization checks for notification deletion.
• Monitor for potential unauthorized notification deletion attempts.
• 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.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD entry provide details on OpenRemote notification deletion endpoint vulnerabilities. Evidence is limited to public CVE Program and NVD records. Defenders should verify OpenRemote notification deletion endpoint configurations and implement proper authorization checks for notification deletion. The vulnerability allows any realm administrator to delete notifications belonging to other realms, posing a risk of unauthorized notification deletion and cross-realm access.

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.