CVE-2026-57146 MervinPraison CVE debrief

Who should care

Defenders responsible for PraisonAI deployments should assess exposure and prioritize remediation to prevent potential unauthorized access. They should verify authentication configuration for PraisonAI A2U event streaming and remediate to PraisonAI version 4.6.61 or later to ensure authentication. Additionally, defenders should monitor for unauthorized access to PraisonAI A2U event routes and review compensating controls for exposed systems.

Why it matters

CVE-2026-57146 is a high-severity vulnerability in PraisonAI A2U that allows unauthenticated access to event streaming. Defenders should prioritize verifying and remediating this weakness to prevent potential unauthorized access.

• Verify authentication configuration for PraisonAI A2U event streaming
• Remediate to PraisonAI version 4.6.61 or later to ensure authentication
• Monitor for unauthorized access to PraisonAI A2U event routes

Technical summary

PraisonAI A2U incomplete authentication fix leaves current serve command unauthenticated by default in versions 4.5.115 to before 4.6.61. The A2U event streaming is exposed without authentication, allowing potential unauthorized access. The vulnerability has a high severity with a CVSS score of 7.5. Defenders should prioritize verifying and remediating PraisonAI A2U authentication weaknesses to prevent security risks. The issue is patched in version 4.6.61, and defenders should remediate to this version or later to ensure authentication.

Defensive priority

Defenders should prioritize verifying and remediating PraisonAI A2U authentication weaknesses

Recommended defensive actions

• Verify PraisonAI A2U authentication configuration
• Remediate PraisonAI to version 4.6.61 or later
• Monitor PraisonAI A2U event streaming for unauthorized access
• 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

Evidence from the CVE Program record and NVD vulnerability detail indicates an incomplete authentication fix in PraisonAI A2U. The CVE Program record and NVD detail page provide source-provided CVE metadata and official vulnerability assessment. The issue allows unauthenticated access to event streaming, which can lead to potential security risks. Defenders should verify and remediate this weakness to prevent unauthorized 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.