CVE-2026-57122Public exploitNetwork attack vectorHinoki check available

Forged webhooks via fail-open signature checks

Published Sep 14, 2026 · Updated Sep 14, 2026

Authentication bypass in PraisonAI before 4.6.59 allows remote attackers to forge WhatsApp and Linear webhook events. The WhatsApp and Linear handlers guard HMAC checks with secret-presence tests, then parse and dispatch unsigned bodies when the secret is unset. Network access to an enabled webhook route is sufficient to impersonate platform users, influence agent actions, and interrupt bot processing.

CVSS severity8.6
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authentication bypass in PraisonAI before 4.6.59 allows remote attackers to forge WhatsApp and Linear webhook events. The WhatsApp and Linear handlers guard HMAC checks with secret-presence tests, then parse and dispatch unsigned bodies when the secret is unset. Network access to an enabled webhook route is sufficient to impersonate platform users, influence agent actions, and interrupt bot processing.

The record

CVE
CVE-2026-57122
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
PraisonAI
Product
PraisonAI
Classifications
CWE-347, CWE-345, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 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=< 4.6.59

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PraisonAI · PraisonAIversion=< 4.6.59

Published CVSS scores

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

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-347Improper Verification of Cryptographic Signature
CWE-345Insufficient Verification of Data Authenticity
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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