Vulnerability · Published Aug 6, 2026 · Assigned by GitHub_M

CVE-2026-47194Frappe: Host header poisoning can redirect magic login links to an attacker-controlled domain

High 8.6

In plain English

A high-severity security flaw in frappe from frappe. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).

Severity (CVSS 4.0)8.6High

Exploit odds (30 days)0.3%top 82.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
frappe	frappe	>= 16.0.0-beta.1, < 16.18.3< 15.108.0

Weakness: CWE-346 · Vector: 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

References

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