CVE-2021-32645

Name: CVE-2021-32645
Creator: NVD / NIST
Published: 2021-05-27T17:15:08.127+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.02%

Last modified Jun 17, 2026

CVE-2021-32645 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Tenancy multi-tenant is an open source multi-domain controller for the Laravel web framework. In some situations, it is possible to have open redirects where users can be redirected from your site to any other site using a specially crafted URL. EPSS estimates a 1.02% chance of exploitation in the next 30 days.

Description

Tenancy multi-tenant is an open source multi-domain controller for the Laravel web framework. In some situations, it is possible to have open redirects where users can be redirected from your site to any other site using a specially crafted URL. This is only the case for installations where the default Hostname Identification is used and the environment uses tenants that have `force_https` set to `true` (default: `false`). Version 5.7.2 contains the relevant patches to fix this bug. Stripping the URL from special characters to prevent specially crafted URL's from being redirected to. As a work around users can set the `force_https` to every tenant to `false`, however this may degrade connection security.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

1.02%

59.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-601

Affected Software

Vendor	Product	Versions
Tenancy	Multi-Tenant	>= 5.6.0, < 5.7.2

References

https://github.com/tenancy/multi-tenant/commit/9c837a21bccce9bcaeb90033ef200d84f0d9e164Patch, Third Party Advisory
https://github.com/tenancy/multi-tenant/security/advisories/GHSA-4r8q-gv9j-3xx6Mitigation, Third Party Advisory
https://packagist.org/packages/hyn/multi-tenantProduct, Third Party Advisory
https://webmasters.googleblog.com/2009/01/open-redirect-urls-is-your-site-being.htmlThird Party Advisory
https://github.com/tenancy/multi-tenant/commit/9c837a21bccce9bcaeb90033ef200d84f0d9e164Patch, Third Party Advisory
https://github.com/tenancy/multi-tenant/security/advisories/GHSA-4r8q-gv9j-3xx6Mitigation, Third Party Advisory
https://packagist.org/packages/hyn/multi-tenantProduct, Third Party Advisory
https://webmasters.googleblog.com/2009/01/open-redirect-urls-is-your-site-being.htmlThird Party Advisory

Timeline

Published: May 27, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32645?

How severe is CVE-2021-32645?

CVE-2021-32645 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.02% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32645?

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-2021-32645?

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

Scan your code now

Source: NVD / NIST