CVE-2026-61436Network attack vector

Unauthenticated agent invocation via unsigned AgentMail webhooks

Published Jul 15, 2026 · Updated Jul 15, 2026

Improper authentication in PraisonAI before 4.6.78 allows remote attackers to invoke agents through forged AgentMail webhook events. The _handle_email_webhook handler accepts event JSON and schedules _process_webhook_payload without validating Svix signatures against a signing secret. Exposure requires AgentMail webhook mode and network access to the bound endpoint; forged sender addresses and content reach the configured agent and reply path.

CVSS severity8.8
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in PraisonAI before 4.6.78 allows remote attackers to invoke agents through forged AgentMail webhook events. The _handle_email_webhook handler accepts event JSON and schedules _process_webhook_payload without validating Svix signatures against a signing secret. Exposure requires AgentMail webhook mode and network access to the bound endpoint; forged sender addresses and content reach the configured agent and reply path.

The record

CVE
CVE-2026-61436
Published
Jul 15, 2026
Updated
Jul 15, 2026
Vendor
PraisonAI
Product
PraisonAI
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 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=0 <4.6.78

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PraisonAI · PraisonAIversion=0 <4.6.78

Published CVSS scores

8.8VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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