What is CVE-2026-57122?

CVE-2026-57122 is a high-severity vulnerability in Mervinpraison Praisonai, classified under Insufficient Verification of Data Authenticity. CVSS score: 8.6/10. Published 2026-09-14.

How severe is CVE-2026-57122?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Mervinpraison Praisonai

CVE-2026-57122

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.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L.

Affected products

Mervinpraison Praisonai — versions < 4.6.59

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-57122?: CVE-2026-57122 is a high-severity vulnerability in Mervinpraison Praisonai, classified under Insufficient Verification of Data Authenticity. CVSS score: 8.6/10. Published 2026-09-14.
How severe is CVE-2026-57122?: High severity. CVSS v3 base score is 8.6 out of 10.