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TI-2026-40468 Aliases CVE-2026-56076GHSA-5fr5-2c3f-3fcr

PraisonAI - Cross-Origin Agent Execution via Hardcoded Wildcard CORS and Missing Authentication on AGUI Endpoint

Priority HIGH 72CWE-942Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

PraisonAI before 1.5.128 contains a cross-origin agent execution vulnerability in the AGUI endpoint that allows remote attackers to trigger arbitrary agent execution. The POST /agui endpoint lacks authentication and hardcodes Access-Control-Allow-Origin: * headers, combined with Starlette's Content-Type-agnostic JSON parsing, enabling attackers to bypass CORS preflight checks via simple requests and exfiltrate sensitive agent responses including tool execution results and environment data.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00637 50th percentileScored 2026-11-07
Fix Fixed PraisonAI (PraisonAI): 1.5.128

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
PraisonAIPraisonAIbefore 1.5.1281.5.128Patch availableCNA
  • PraisonAI VendorPraisonAI Affected before 1.5.128 Fixed in 1.5.128 Patch available CNA

Remediation

  • Fix · CNA PraisonAI (PraisonAI) Fixed in 1.5.128

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    PraisonAI 1.5.128

    2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2026-40466 PraisonAI - Tool Approval Cache Bypass via Coarse-Grained CachingPriority MEDIUM 63
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-56076
  2. 2026-10-03 Alias added: GHSA-5fr5-2c3f-3fcr
  3. 2026-10-09 EPSS moved to the below the 50th percentile
  4. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Advisory 1

  • TI-2026-40470 PraisonAI - Arbitrary File Read and Write via Path Traversal in MultiAgentMonitor CVSS 4.0HIGH 8.7
  • TI-2026-40467 PraisonAI - Arbitrary Shell Command Execution via Hardcoded Approval Mode Override CVSS 4.0HIGH 8.7
  • TI-2026-40466 PraisonAI - Tool Approval Cache Bypass via Coarse-Grained Caching CVSS 4.0MEDIUM 6.8
  • TI-2026-42218 PraisonAI - Authorization Bypass via Unvalidated project_id in Issue Create/Update CVSS 4.0MEDIUM 5.3
  • TI-2026-40469 PraisonAI - Information Disclosure via Shared MultiAgentLedger State CVSS 4.0HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences