MervinPraison PraisonAI up to 4.6.58 WhatsApp/Linear bot webhook handlers data authenticity

Summaryinfo

A vulnerability marked as critical has been reported in MervinPraison PraisonAI up to 4.6.58. The impacted element is an unknown function of the component WhatsApp/Linear bot webhook handlers. Performing a manipulation results in data authenticity. This vulnerability is known as CVE-2026-57122. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in MervinPraison PraisonAI up to 4.6.58. It has been classified as critical. This affects an unknown code of the component WhatsApp/Linear bot webhook handlers. The manipulation with an unknown input leads to a data authenticity vulnerability. CWE is classifying the issue as CWE-345. The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

PraisonAI is a multi-agent teams system. Prior to 4.6.59, the WhatsApp and Linear bot webhook handlers verify HMAC signatures only when WHATSAPP_APP_SECRET or LINEAR_WEBHOOK_SECRET is configured and otherwise parse and dispatch unsigned request bodies. A remote unauthenticated client that reaches the webhook route can forge messages, comments, or agent-session events, impersonate platform users, influence agent prompts and actions, and disrupt bot processing. This issue is fixed in 4.6.59.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-57122 since 06/24/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 4.6.59 eliminates this vulnerability.

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Productinfo

Vendor

• MervinPraison

Name

• PraisonAI

Version

• 4.6.0
• 4.6.1
• 4.6.2
• 4.6.3
• 4.6.4
• 4.6.5
• 4.6.6
• 4.6.7
• 4.6.8
• 4.6.9
• 4.6.10
• 4.6.11
• 4.6.12
• 4.6.13
• 4.6.14
• 4.6.15
• 4.6.16
• 4.6.17
• 4.6.18
• 4.6.19
• 4.6.20
• 4.6.21
• 4.6.22
• 4.6.23
• 4.6.24
• 4.6.25
• 4.6.26
• 4.6.27
• 4.6.28
• 4.6.29
• 4.6.30
• 4.6.31
• 4.6.32
• 4.6.33
• 4.6.34
• 4.6.35
• 4.6.36
• 4.6.37
• 4.6.38
• 4.6.39
• 4.6.40
• 4.6.41
• 4.6.42
• 4.6.43
• 4.6.44
• 4.6.45
• 4.6.46
• 4.6.47
• 4.6.48
• 4.6.49
• 4.6.50
• 4.6.51
• 4.6.52
• 4.6.53
• 4.6.54
• 4.6.55
• 4.6.56
• 4.6.57
• 4.6.58

Website

• Product: https://github.com/MervinPraison/PraisonAI/

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