CVE-2026-55534Public exploitNetwork attack vectorHinoki check available

Unauthenticated agent execution via unenforced API key

Published Aug 25, 2026 · Updated Aug 27, 2026

Missing authentication in PraisonAI 4.6.34 through 4.6.57 allows remote attackers to invoke configured agents over HTTP without credentials. The _create_agents_app function registers POST /agents and POST /agents/{agent_name} without applying the API key supplied by the serve command. Exploitation requires network access to the Agents server and executes its configured workflows and connected tools with the server's privileges.

CVSS severity8.6
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Missing authentication in PraisonAI 4.6.34 through 4.6.57 allows remote attackers to invoke configured agents over HTTP without credentials. The _create_agents_app function registers POST /agents and POST /agents/{agent_name} without applying the API key supplied by the serve command. Exploitation requires network access to the Agents server and executes its configured workflows and connected tools with the server's privileges.

The record

CVE
CVE-2026-55534
Published
Aug 25, 2026
Updated
Aug 27, 2026
Vendor
PraisonAI
Product
PraisonAI
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=>= 4.6.34, < 4.6.58

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PraisonAI · PraisonAIversion=>= 4.6.34, < 4.6.58

Published CVSS scores

8.6GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

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
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

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Your stack

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