CVE-2026-56076
HIGHPraisonAI - Cross-Origin Agent Execution via Hardcoded Wildcard CORS and Missing Authentication on AGUI Endpoint
Title source: cnaDescription
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.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
GHSA Advisory GHSA-x462-jjpc-q4q4
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-x462-jjpc-q4q4
Third Party Advisory third-party-advisory
VulnCheck Advisory: PraisonAI - Cross-Origin Agent Execution via Hardcoded Wildcard CORS and Missing Authentication on AGUI Endpoint
https://www.vulncheck.com/advisories/praisonai-cross-origin-agent-execution-via-hardcoded-wildcard-cors-and-missing-authentication-on-agui-endpoint
Scores
CVSS v3
8.1
EPSS
0.0050
EPSS Percentile
39.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-942
Status
published
Products (2)
PraisonAI/PraisonAI
< 1.5.128
PraisonAI/PraisonAI
1.5.128
Published
Jun 18, 2026
Tracked Since
Jun 19, 2026