CVE-2026-61426Public exploitNetwork attack vector

Unauthenticated agent access via skipped API-key middleware

Published Jul 11, 2026 · Updated Jul 11, 2026

Missing authentication in AgentOS in PraisonAI before 1.7.3 allows remote attackers to read prompts and invoke agents over HTTP. DEFAULT_AGENTOS_CONFIG binds to 0.0.0.0 with an empty API key, and serve registers authentication middleware only when that key is nonempty. The documented default deployment therefore exposes GET /api/agents and POST /api/chat to any network peer, enabling instruction disclosure and agent use.

CVSS severity8.8
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing authentication in AgentOS in PraisonAI before 1.7.3 allows remote attackers to read prompts and invoke agents over HTTP. DEFAULT_AGENTOS_CONFIG binds to 0.0.0.0 with an empty API key, and serve registers authentication middleware only when that key is nonempty. The documented default deployment therefore exposes GET /api/agents and POST /api/chat to any network peer, enabling instruction disclosure and agent use.

The record

CVE
CVE-2026-61426
Published
Jul 11, 2026
Updated
Jul 11, 2026
Vendor
Mervin Praison
Product
PraisonAI
Classifications
CWE-306, CWE-284, CWE-200, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.7.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mervin Praison · PraisonAIversion=0 <1.7.3

Published CVSS scores

8.6MervinPraison GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
8.6VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
8.8VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-284Improper Access Control
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo