CVSS 3.1
7.6 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:LCVE-2026-55532
High (7.6). EPSS 0.2% chance of exploitation in the next 30 days. Fixed in praisonai 4.6.58.
PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, MCP HTTP Stream _validate_origin uses request_origin.startswith(allowed), allowing the attacker-controlled localhost.attacker.com HTTP origin to satisfy the localhost allowlist. A webpage can send Content-Type: text/plain requests without preflight and invoke tools/call without an API key, including file writes that persist agent instructions. This issue is fixed in version 4.6.58.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 9% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-346, CWE-352
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-pvph-5j39-v8qc | PyPI | praisonai | <4.6.58 | 4.6.58 |
| PYSEC-2026-3892 | PyPI | praisonai | <4.6.58 | 4.6.58 |