TI-2026-79619 Aliases CVE-2026-57116

Missing authentication in PraisonAI AgentOS exposes agent chat

HIGH 82CWE-200Published 2026-10-23 · Updated 2026-10-29

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Information disclosure, Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200 and CWE-306.

Summary

PraisonAI from 4.2.1 before 4.6.59 has an AgentOS FastAPI deployment that stays unauthenticated, so the chat route runs the deployed agent without checking credentials (CWE-306). A remote attacker with no credentials can drive agents that have tools, private context, memory, API integrations or paid model calls. Requests with no bearer token or a wrong one both execute the agent.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

PraisonAI is a multi-agent teams system. From version 4.2.1 to before version 4.6.59, PraisonAI's AgentOS FastAPI deployment surface remains unauthenticated in current main and in releases after the published patched version for GHSA-pm96-6xpr-978x / CVE-2026-40151. The chat route directly calls agent.chat(request.message). No-auth and wrong-bearer requests both execute the deployed agent. This is broader than passive metadata disclosure. In any deployment where AgentOS wraps agents with tools, private context, memory, API integrations, or cost-bearing model calls, an unauthenticated reachable client can drive those agents. This issue has been patched in version 4.6.59.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00416 36th percentileScored 2026-11-07

Fix Fixed PraisonAI (MervinPraison): 4.6.59praisonai (PyPI): 4.6.59

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Total

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
MervinPraison	PraisonAI	4.2.1 to before 4.6.59	4.6.59	Patch available	CNA
—	praisonai (PyPI)	4.2.1 to before 4.6.59	4.6.59	Patch available	GHSA-892r-p3jq-jp24

PraisonAI VendorMervinPraison Affected 4.2.1 to before 4.6.59 Fixed in 4.6.59 Patch available CNA
praisonai (PyPI) Vendor— Affected 4.2.1 to before 4.6.59 Fixed in 4.6.59 Patch available GHSA-892r-p3jq-jp24

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:praison:praisonai::::::::	—	—	MervinPraison

cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:* Versions — — ·MervinPraison

Remediation

Upgrade the praisonai package on PyPI to version 4.6.59, which fixes it. The sources list no fixed version for PraisonAI.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA PraisonAI (MervinPraison) Fixed in 4.6.59
Fix · GHSA-892r-p3jq-jp24 praisonai (PyPI) Fixed in 4.6.59 Advisory →

Timeline

2026-10-23 Threatist record created from CVE-2026-57116
2026-10-29 CISA SSVC decision points changed
2026-10-29 Priority changed: MEDIUM → HIGH

References

Other 2

TI-2026-71236 Missing access control in PraisonAI AgentTeam exposes agent endpoints CVSS 3.1CRITICAL 9.8
TI-2026-44052 PraisonAI before 1.6.78 Remote Code Execution via CodeAgent CVSS 4.0CRITICAL 10.0
TI-2026-41123 praisonai-platform 0.1.4 still boots on the hardcoded JWT secret dev-secret-change-me (default-open production guard) CVSS 3.1CRITICAL 9.8
TI-2026-41122 praisonai-platform: default JWT signing secret 'dev-secret-change-me' enables token forgery CVSS 3.1CRITICAL 9.8
TI-2026-41118 PraisonAI MCPServer exposes unauthenticated HTTP tools/call CVSS 3.1CRITICAL 9.8
TI-2026-41110 praisonai: Jobs API exposes agent-execution endpoints with no authentication CVSS 3.1CRITICAL 9.8

See all 177 →

Sources

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