# CVE-2026-57122: PraisonAI webhook authentication bypass in WhatsApp and Linear handlers

Source: https://junglewise.ai/threats/cve-2026-57122-praisonai-webhook-authentication-bypass-in-whatsapp-and-linear  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-14. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-57122 · Severity: high · CVSS 8.6 · Published 2026-09-14

PraisonAI is a multi-agent automation system that processes messages from WhatsApp and Linear. When the corresponding API secrets are not configured, the webhook handlers skip signature verification and accept unsigned requests. An attacker can send forged messages to impersonate users, manipulate bot behavior, or disrupt service without needing any credentials or authentication.

Technologies: [praisonai (PyPI)](https://junglewise.ai/threats/technologies/pypi-praisonai). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2026-57122 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-57122 being exploited in the wild.

**How severe is CVE-2026-57122?** High severity, with a CVSS score of 8.6, published 14 September 2026.

**Which products and versions are affected?** praisonai (PyPI) ECOSYSTEM:introduced=0,fixed=4.6.59.

**Is there a fix for CVE-2026-57122?** Yes. praisonai (PyPI): upgrade to 4.6.59 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-57122 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-57122?** Check whether you run praisonai (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- praisonai (PyPI): upgrade to 4.6.59 or later

  ```sh
  pip install "praisonai>=4.6.59"
  ```


## Technical details

The vulnerability is a conditional authentication bypass in webhook signature verification. The WhatsApp and Linear bot webhook handlers check HMAC signatures only when their respective environment variables (WHATSAPP_APP_SECRET and LINEAR_WEBHOOK_SECRET) are set; if these are absent, the handlers parse and dispatch unsigned request bodies directly. An unauthenticated remote attacker with network access to the webhook endpoints can forge webhook requests to forge messages, comments, or agent-session events, impersonate platform users, and influence agent prompts and actions. The issue was resolved in version 4.6.59 by hardening input validation and access controls.

## Affected products

- MervinPraison PraisonAI prior to 4.6.59

## Identifiers

- CVE-2026-57122
- GHSA-x92v-rpx6-p6cw
- PYSEC-2026-3523

## Timeline

- 2026-09-14: disclosed
- 2026-06-13: patched

## References

- [https://github.com/MervinPraison/PraisonAI/commit/2adfe7e8323f6deec66925cf15a885b6238895e9](https://github.com/MervinPraison/PraisonAI/commit/2adfe7e8323f6deec66925cf15a885b6238895e9)
- [https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.59](https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.59)

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