CVE-2024-49753 Denied Host Validation Bypass in Zitadel Actions
Attackers can bypass localhost restrictions in Zitadel actions via DNS tricks to access internal endpoints, requiring a patch.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-49753?
CVE-2024-49753 is a medium-severity server-side request forgery vulnerability in zitadel, published on 25 Oct 2024. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-20
Which versions are affected by CVE-2024-49753?
19 open source packages ship an affected version, including github.com/zitadel/zitadel. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/zitadel/zitadel Go | All versions | None |
github.com/zitadel/zitadel Go | All versions | 0.0.0-20241022141644-79fb4cc1cc6e |
github.com/zitadel/zitadel Go | All versions | 0.0.0-20241022141644-79fb4cc1cc6e |
github.com/zitadel/zitadel Go | From 0.0.0 | 1.80.0-v2.20.0.20241022141644-79fb4cc1cc6e |
github.com/zitadel/zitadel Go | From 0.0.0 | 1.80.0-v2.20.0.20241022141644-79fb4cc1cc6e |
github.com/zitadel/zitadel Go | From 1.80.1 | 2.58.7 |
13 more packages
github.com/zitadel/zitadel Go | From 1.80.1 | 2.58.7 |
github.com/zitadel/zitadel Go | From 2.59.0 | 2.59.5 |
github.com/zitadel/zitadel Go | From 2.59.0 | 2.59.5 |
github.com/zitadel/zitadel Go | From 2.60.0 | 2.60.4 |
github.com/zitadel/zitadel Go | From 2.60.0 | 2.60.4 |
github.com/zitadel/zitadel Go | From 2.61.0 | 2.61.4 |
github.com/zitadel/zitadel Go | From 2.61.0 | 2.61.4 |
github.com/zitadel/zitadel Go | From 2.62.0 | 2.62.8 |
github.com/zitadel/zitadel Go | From 2.62.0 | 2.62.8 |
github.com/zitadel/zitadel Go | From 2.63.0 | 2.63.6 |
github.com/zitadel/zitadel Go | From 2.63.0 | 2.63.6 |
github.com/zitadel/zitadel Go | From 2.64.0 | 2.64.1 |
github.com/zitadel/zitadel Go | From 2.64.0 | 2.64.1 |
Products include Zitadel Zitadel.
How do I fix CVE-2024-49753?
Upgrade github.com/zitadel/zitadel to a fixed version for your release line: 0.0.0-20241022141644-79fb4cc1cc6e, 1.80.0-v2.20.0.20241022141644-79fb4cc1cc6e, 2.58.7 or 2.59.5.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2024-49753 being exploited?
There is no known exploitation of CVE-2024-49753 in the wild and no public exploit code.
Other vulnerabilities in zitadel
- CVE-2026-29191 ZITADEL: 1-Click Account Takeover via XSS in /saml-post Endpoint
- CVE-2025-67494 ZITADEL Vulnerable to Unauthenticated Full-Read SSRF via V2 Login
- CVE-2025-27507 IDOR Vulnerabilities in ZITADEL's Admin API that Primarily Impact LDAP Configurations
- CVE-2025-64103 Zitadel Bypass Second Authentication Factor
- CVE-2025-31123 Zitadel Expired JWT Keys Usable for Authorization Grants
Sources
Also known as GHSA-6cf5-w9h3-4rqv, GO-2024-3216.