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-2026-55535

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, the Jobs API validatewebhookurl path fails open on socket.gaierror and does not bind the validated address to the later request. An attacker webhookurl can later resolve to 127.0.0.1, 169.254.169.254, or another internal address...

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...