← Vulnerability feed

Vulnerability record · CVE-2024-49753 · published 25 October 2024

CVE-2024-49753: Zitadel improper input validation vulnerability

Zitadel · Zitadel

Zitadel is open-source identity infrastructure software. Versions prior to 2.64.1, 2.63.6, 2.62.8, 2.61.4, 2.60.4, 2.59.5, and 2.58.7 have a flaw in the URL validation mechanism of Zitadel actions allows bypassing restrictions intended to block requests to localhost (127.0.0.1). The isHostBlocked check, designed to prevent such requests, can be circumvented by creating a DNS record that resolves to 127.0.0.1. This enables actions to send requests to localhost despite the intended security measures. This vulnerability potentially allows unauthorized access to unsecured internal endpoints, which may contain sensitive information or functionalities. Versions 2.64.1, 2.63.6, 2.62.8, 2.61.4, 2.60.4, 2.59.5, and 2.58.7 contain a patch. No known workarounds are available.

9.1 CVSS 3.1 Critical EPSS 0.65% · top 50.8% CWE-20 · Improper input validation
9.1CVSS 3.1 base score
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

Zitadel is open-source identity infrastructure software. Versions prior to 2.64.1, 2.63.6, 2.62.8, 2.61.4, 2.60.4, 2.59.5, and 2.58.7 have a flaw in the URL validation mechanism of Zitadel actions allows bypassing restrictions intended to block requests to localhost (127.0.0.1). The isHostBlocked check, designed to prevent such requests, can be circumvented by creating a DNS record that resolves to 127.0.0.1. This enables actions to send requests to localhost despite the intended security measures. This vulnerability potentially allows unauthorized access to unsecured internal endpoints, which may contain sensitive information or functionalities. Versions 2.64.1, 2.63.6, 2.62.8, 2.61.4, 2.60.4, 2.59.5, and 2.58.7 contain a patch. No known workarounds are available.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/zitadel/zitadel/releases/tag/v2.58.7 Release Notes
https://github.com/zitadel/zitadel/releases/tag/v2.59.5 Release Notes
https://github.com/zitadel/zitadel/releases/tag/v2.60.4 Release Notes
https://github.com/zitadel/zitadel/releases/tag/v2.61.4 Release Notes
https://github.com/zitadel/zitadel/releases/tag/v2.62.8 Release Notes
https://github.com/zitadel/zitadel/releases/tag/v2.63.6 Release Notes
https://github.com/zitadel/zitadel/releases/tag/v2.64.1 Release Notes
https://github.com/zitadel/zitadel/security/advisories/GHSA-6cf5-w9h3-4rqv ExploitVendor Advisory

Track CVE-2024-49753 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2026-29191Zitadel cross-site scripting vulnerabilityZITADEL is an open source identity management platform. From version 4.0.0 to 4.11.1, a vulnerability in Zitadel's login V2 interface was discovered …EPSS 0.38%9.3CVE-2026-29067Zitadel open redirect vulnerabilityZITADEL is an open source identity management platform. From version 4.0.0-rc.1 to 4.7.0, a potential vulnerability exists in ZITADEL's password rese…EPSS 0.36%9.0CVE-2025-27507Zitadel insecure direct object reference vulnerabilityThe open-source identity infrastructure software Zitadel allows administrators to disable the user self-registration. ZITADEL's Admin API contains In…EPSS 0.61%8.8CVE-2025-64101Zitadel open redirect vulnerabilityZitadel is open-source identity infrastructure software. Prior to 4.6.0, 3.4.3, and 2.71.18, a potential vulnerability exists in ZITADEL's password r…EPSS 0.34%8.8CVE-2025-48936Zitadel open redirect vulnerabilityZitadel is open-source identity infrastructure software. Prior to versions 2.70.12, 2.71.10, and 3.2.2, a potential vulnerability exists in the passw…EPSS 0.39%8.8CVE-2023-49097Zitadel weak password recovery vulnerabilityZITADEL is an identity infrastructure system. ZITADEL uses the notification triggering requests Forwarded or X-Forwarded-Host header to build the but…EPSS 0.77%8.8CVE-2022-36051Zitadel interpretation conflict vulnerabilityZITADEL combines the ease of Auth0 and the versatility of Keycloak.**Actions**, introduced in ZITADEL **1.42.0** on the API and **1.56.0** for Consol…EPSS 0.99%8.7CVE-2025-64103Zitadel improper authentication vulnerabilityStarting from 2.53.6, 2.54.3, and 2.55.0, Zitadel only required multi factor authentication in case the login policy has either enabled requireMFA or…EPSS 0.33%

Source: NIST National Vulnerability Database (record CVE-2024-49753), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.