---
title: "CVE-2026-57134: PraisonAI - Authentication Bypass"
description: "PraisonAI 1.5.1 to 1.7.2 contains a broken authentication caused by improper validation of Basic and OAuth policies in MCPSecurity.evaluatePolicy(), letting attackers with invalid credentials access protected MCP tools, exploit requires use of Basic or OAuth policies with non-empty Authorization header."
url: https://panop.io/threat-heartbeat/CVE-2026-57134/
---

# CVE-2026-57134 PraisonAI - Authentication Bypass

PraisonAI 1.5.1 to 1.7.2 contains a broken authentication caused by improper validation of Basic and OAuth policies in MCPSecurity.evaluatePolicy(), letting attackers with invalid credentials access protected MCP tools, exploit requires use of Basic or OAuth policies with non-empty Authorization header.

CVSS base score 8.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.41% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-57134)

## Details

Type

Authentication Bypass

Impact

Broken Authentication

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Published

15 September 2026

Updated

15 October 2026

Weakness

[CWE-287](https://cwe.mitre.org/data/definitions/287.html)

## Vendor fix

Update to version 1.7.2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-57134](https://nvd.nist.gov/vuln/detail/CVE-2026-57134)
- [https://github.com/MervinPraison/PraisonAI/commit/709a0387853709a5e2f2c34680fa64cada252c27](https://github.com/MervinPraison/PraisonAI/commit/709a0387853709a5e2f2c34680fa64cada252c27)
- [https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.60](https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.60)
- [https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-4qq2-2j2x-x62c](https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-4qq2-2j2x-x62c)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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