CVE-2026-55537

PraisonAI: Webhook SSRF via DNS fail-open in `JobSubmitRequest.validate_webhook_url()` — bypass of CVE-2026-40114

State: Published
Severity: 7.1 High
Published: Aug 25, 2026
Updated: Aug 25, 2026
Reserved: Jun 16, 2026

Description

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, JobSubmitRequest.validate_webhook_url() accepts webhook_url when resolution raises socket.gaierror because the exception path uses except socket.gaierror: pass. JobExecutor._send_webhook() later performs a fresh lookup, allowing DNS changes to direct the request to an internal service. This issue is fixed in version 4.6.58.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N	GitHub_M

Weaknesses

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-705 Incorrect Control Flow Scoping
CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
PraisonAIMervinPraison	< 4.6.58Affected

References

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