CVE-2026-9557

Name: CVE-2026-9557
Creator: NVD / NIST
Published: 2026-05-29T11:16:17.853+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.4/10EPSS 0.14%

Last modified Jun 17, 2026

CVE-2026-9557 is a medium-severity vulnerability rated 6.4/10 on the CVSS scale. A Server-Side Request Forgery (SSRF) vulnerability exists in Mautic's Focus component. Due to insufficient validation of user-supplied URLs, an authenticated user can trigger outbound HTTP requests from the hosting server, enabling internal network reconnaissance or forcing requests to arbitrary internal or external destinations.. EPSS estimates a 0.14% chance of exploitation in the next 30 days.

Description

A Server-Side Request Forgery (SSRF) vulnerability exists in Mautic's Focus component. Due to insufficient validation of user-supplied URLs, an authenticated user can trigger outbound HTTP requests from the hosting server, enabling internal network reconnaissance or forcing requests to arbitrary internal or external destinations.

Metrics

CVSS 3.1

6.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS Probability

0.14%

3.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

References

https://github.com/mautic/mautic/security/advisories/GHSA-jmv8-8j9j-rcpc

Timeline

Published: May 29, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-9557?

How severe is CVE-2026-9557?

CVE-2026-9557 has a CVSS score of 6.4/10 (MEDIUM severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.

How do I fix CVE-2026-9557?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-9557?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST