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

Type: advisorySource: Official CVE List1 source record

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.

Announced Group revision 1
Original source ↗

CVE-2026-56076

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-56076

PraisonAI

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "PraisonAI",
    "product": "PraisonAI",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.5.128",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "1.5.128",
        "versionType": "semver"
      }
    ],
    "packageURL": "pkg:pypi/praisonaiagents",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-56076

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#12753 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement