PYSEC-2026-3890 PraisonAI vulnerable to Server-Side Request Forgery via DNS rebinding bypass in webhook_url validation

Summary The webhookurl field in the Jobs API silently passes validation when DNS resolution fails socket.gaierror, enabling DNS rebinding attacks. An attacker's domain can initially resolve to a public IP passing validation then switch to an internal IP before the server makes the HTTP request...

CVE-2026-55537

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, JobSubmitRequest.validatewebhookurl accepts webhookurl when resolution raises socket.gaierror because the exception path uses except socket.gaierror: pass. JobExecutor.sendwebhook later performs a fresh lookup, allowing DNS chang...

CVE-2026-55537

PraisonAI , a multi-agent teams system, is affected by a webhook SSRF vulnerability via DNS fail-open in JobSubmitRequest.validate_webhook_url(). When DNS resolution raises socket.gaierror, the exception is silently swallowed (except socket.gaierror: pass), accepting the webhook_url. JobExecutor....

PT-2026-81327

Name of the Vulnerable Software and Affected Versions PraisonAI versions prior to 4.6.58 Description A Server-Side Request Forgery SSRF issue exists due to a Time-of-Check to Time-of-Use TOCTOU flaw and a fail-open DNS validation mechanism. The JobSubmitRequest.validate webhook url function...