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HIGH severity

CVE-2024-49757 — zitadel

HIGH

CVE-2024-49757 is a high-severity (CVSS 7.5) Improper Authentication vulnerability in github.com/zitadel/zitadel. A fix is available for github.com/zitadel/zitadel — see the affected versions and patch details below.

Zitadel User Registration Bypass Vulnerability

Also known asGHSA-3rmw-76m6-4gjcGO-2024-3217
Published
Updated
Affected
6 pkgs
Patched
6 / 6
Exploits
None indexed
Exploitation data as of Oct 31, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2024-49757.

EPSS Exploitation Probability

via FIRST.org ↗
2.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs85th percentile — riskier than 85% of all scored CVEsHighest risk
0.04%4.44%8.85%13.3%10.8%2.5%May 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

6 pkgs affected
🐹github.com/zitadel/zitadel🐹github.com/zitadel/zitadel🐹github.com/zitadel/zitadel🐹github.com/zitadel/zitadel🐹github.com/zitadel/zitadel🐹github.com/zitadel/zitadel

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Impact

Zitadel allows administrators to disable the user self-registration. Due to a missing security check in versions prior to 2.63.4, disabling the "User Registration allowed" option only hid the registration button on the login page. Users could bypass this restriction by directly accessing the registration URL (/ui/login/loginname) and register a user that way.

Patches

2.x versions are fixed on >= 2.64.0 2.63.x versions are fixed on >= 2.63.5 2.62.x versions are fixed on >= 2.62.7 2.61.x versions are fixed on >= 2.61.4 2.60.x versions are fixed on >= 2.60.4 2.59.x versions are fixed on >= 2.59.5 2.58.x versions are fixed on >= 2.58.7

Workarounds

Updating to the patched version is the recommended solution.

Questions

If you have any questions or comments about this advisory, please email us at [email protected]

Credits

Thanks to @sevensolutions and @evilgensec for disclosing this!

Affected Packages

6 total 6 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/zitadel/zitadel≥ 2.63.0&&< 2.63.52.63.5go get github.com/zitadel/zitadel@v2.63.5
🐹Gogithub.com/zitadel/zitadel≥ 2.62.0&&< 2.62.72.62.7go get github.com/zitadel/zitadel@v2.62.7
🐹Gogithub.com/zitadel/zitadel≥ 2.61.0&&< 2.61.42.61.4go get github.com/zitadel/zitadel@v2.61.4
🐹Gogithub.com/zitadel/zitadel≥ 2.60.0&&< 2.60.42.60.4go get github.com/zitadel/zitadel@v2.60.4
🐹Gogithub.com/zitadel/zitadel≥ 2.59.0&&< 2.59.52.59.5go get github.com/zitadel/zitadel@v2.59.5
🐹Gogithub.com/zitadel/zitadelall versions2.58.7go get github.com/zitadel/zitadel@v2.58.7

Affected Products

1 product · 6 configurations
Application
zitadelzitadel
≥ 2.63.0 && < 2.63.5
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/zitadel/zitadel, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/zitadel/zitadel to 2.63.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-49757 is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

How to detect CVE-2024-49757

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2024-49757 -u https://target
Template
Zitadel - User Registration Bypass
Severity
high
Impact
Unauthenticated users can bypass the disabled user registration restriction and register accounts.
Remediation
Update Zitadel to version 2.64.0, 2.63.5, 2.62.7, 2.61.4, 2.60.4, 2.59.5, or 2.58.7 or later.

Template by ProjectDiscovery nuclei-templates (Sujal Tuladhar), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

### Impact Zitadel allows administrators to disable the user self-registration. Due to a missing security check in versions prior to 2.63.4, disabling the "User Registration allowed" option only hid the registration button on the login page. Users could bypass this restriction by directly accessing the registration URL (/ui/login/loginname) and register a user that way. ### Patches 2.x versions are fixed on >= [2.64.0](https://github.com/zitadel/zitadel/releases/tag/v2.64.0) 2.63.x versions are fixed on >= [2.63.5](https://github.com/zitadel/zitadel/releases/tag/v2.63.5) 2.62.x versions are
O3 Security · Impact-Aware SCA

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CVE-2024-49757: zitadel — Fixed in 2.63.5