CVE-2026-82722 ash-project CVE debrief

Who should care

Users of ash_admin, particularly those who have not applied the patch, should be aware of this vulnerability and take immediate action to mitigate the risk. This includes administrators and security teams responsible for ensuring the security and stability of systems utilizing ash_admin. Operators and platform managers should also review the vulnerability's impact on their environments and plan for necessary updates or mitigations. Vulnerability management and security teams should prioritize this issue due to its HIGH CVSS score of 8.3 and potential for denial of service. Asset owners and change management teams should also be informed to ensure proper tracking and remediation of exposed systems. Monitoring and incident response teams should prepare for potential exploitation attempts and be ready to verify the effectiveness of compensating controls and patches. Overall, anyone involved in the security and maintenance of ash_admin deployments should be aware of this vulnerability and take appropriate actions to protect their systems. This includes reviewing system logs for suspicious activity, implementing compensating controls where necessary, and staying informed about any additional guidance from the vendor or security community. The vulnerability's impact on various stakeholders underscores the importance of prompt assessment and remediation to prevent potential disruptions. By taking proactive steps, organizations can minimize the risk associated with this vulnerability and ensure the continued stability and security of their ash_admin deployments. Effective communication and coordination among different teams will be crucial in addressing this vulnerability and maintaining the overall security posture of affected systems. Therefore, it is essential for all relevant parties to be aware of this issue and contribute to its mitigation and remediation efforts. The vulnerability's severity and potential impact emphasize the need for swift action and collaboration across various teams to protect ash_admin deployments from potential exploitation. By prioritizing this vulnerability and taking coordinated action, organizations can reduce the risk of denial of serv

Technical summary

The vulnerability in ash_admin allows for denial of service due to Allocation of Resources Without Limits or Throttling. Two LiveView event handlers interned atoms from unvalidated client input, leading to a potential crash of the entire node. The fix resolves the submitted resource/domain against the known shown resources and maps calculation keys to declared arguments, so no client-supplied string is interned. This issue affects ash_admin: from 0.1.0 before 1.3.1.

Defensive priority

High-priority defensive actions recommended due to the HIGH CVSS score of 8.3 and potential for denial of service.

Recommended defensive actions

• Apply the patch from https://github.com/ash-project/ash_admin/commit/731dffa09416d68f4ad3a0b6ee146b285ca0083b
• Implement compensating controls to limit access to the admin LiveView
• Monitor for suspicious activity and implement exception tracking
• Review system logs for evidence of exploitation attempts
• Verify the effectiveness of compensating controls and patches
• Conduct a thorough review of the vulnerability's impact on your environment
• Implement asset inventory management to track exposed systems

Evidence notes

Evidence from official sources indicates an Allocation of Resources Without Limits or Throttling vulnerability in ash_admin. The vulnerability allows any client that can reach the admin LiveView to exhaust the BEAM atom table and crash the entire node. Two LiveView event handlers interned atoms from unvalidated client input, leading to a potential denial of service.

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.