CVE-2026-47194

Frappe: Host header poisoning can redirect magic login links to an attacker-controlled domain

State: Published
Severity: 8.6 High
Published: Aug 6, 2026
Updated: Aug 7, 2026
Reserved: May 18, 2026

Description

Frappe is a full-stack web application framework. Prior to 15.108.0 and 16.18.3, temporary magic login link generation can use an attacker-controlled request Host header, allowing a remote attacker to cause emailed login links to point to an attacker-controlled domain and capture the login token when a recipient follows the link. This issue is fixed in versions 15.108.0 and 16.18.3.

Scores

CVSS	Score	Vector	Source
4.0	8.6 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-346 Origin Validation Error

Affected Products

Product	Versions
frappefrappe	>= 16.0.0-beta.1, < 16.18.3Affected < 15.108.0Affected

References

https://github.com/frappe/frappe/security/advisories/GHSA-3w78-3cj3-p949

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