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PatchSiren cyber security CVE debrief

CVE-2026-34952 MervinPraison CVE debrief

CVE-2026-34952 is a critical vulnerability in PraisonAI, a multi-agent teams system. The PraisonAI Gateway server accepts WebSocket connections at /ws and serves agent topology at /info without authentication. This allows any network client to connect, enumerate registered agents, and send arbitrary messages to agents and their tool sets. The issue has been patched in version 4.5.97. Users and administrators of PraisonAI versions prior to 4.5.97 should apply the patch to prevent unauthorized access and potential exploitation.

Vendor
MervinPraison
Product
PraisonAI
CVSS
CRITICAL 9.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-03
Original CVE updated
2026-07-24
Advisory published
2026-04-03
Advisory updated
2026-07-24

Who should care

Users and administrators of PraisonAI versions prior to 4.5.97 should apply the patch to prevent unauthorized access and potential exploitation. This includes operators, platform administrators, vulnerability management teams, and security teams who need to assess and mitigate the risk associated with this vulnerability.

Technical summary

The PraisonAI Gateway server has an authentication bypass vulnerability. The server accepts WebSocket connections at /ws and serves agent topology at /info without requiring authentication. This allows unauthenticated access to agent topology and the ability to send arbitrary messages to agents and their tool sets. The issue has been patched in version 4.5.97. Affected product deployments should be identified in managed environments and assigned an owner for follow-up. Operators and administrators should review compensating controls for exposed systems while remediation is scheduled and verified, and check relevant monitoring, detection, and logs for exposed assets that need extra review. The CVE record was published on 2026-04-03T23:17:06.490Z and last modified on 2026-07-24T22:10:00.140Z. The NVD entry is currently Analyzed.

Defensive priority

High

Recommended defensive actions

  • Apply the patch to upgrade PraisonAI to version 4.5.97 or later
  • Restrict access to the PraisonAI Gateway server
  • Monitor for suspicious activity
  • 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 was published on 2026-04-03T23:17:06.490Z and last modified on 2026-07-24T22:10:00.140Z. The NVD entry is currently Analyzed. The PraisonAI Gateway server's authentication bypass vulnerability allows unauthenticated access to agent topology and the ability to send arbitrary messages to agents and their tool sets. Evidence is limited to CVE and NVD details.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-34952 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-34952

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-34952 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-34952

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental 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.