CVE-2021-39898
MEDIUMCVSS 5.3/10EPSS 1.24%
Last modified
CVE-2021-39898 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. In all versions of GitLab CE/EE since version 10.6, a project export leaks the external webhook token value which may allow access to the project which it was exported from.. EPSS estimates a 1.24% chance of exploitation in the next 30 days.
Description
In all versions of GitLab CE/EE since version 10.6, a project export leaks the external webhook token value which may allow access to the project which it was exported from.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 10.6.0, < 14.1.7 |
| Gitlab | Gitlab | >= 14.2.0, < 14.2.5 |
| Gitlab | Gitlab | 14.3.0 |
References
- https://hackerone.com/reports/698068Permissions Required, Third Party Advisory
- https://hackerone.com/reports/698068Permissions Required, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-39898?
In all versions of GitLab CE/EE since version 10.6, a project export leaks the external webhook token value which may allow access to the project which it was exported from.
How severe is CVE-2021-39898?
CVE-2021-39898 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.24% probability of exploitation in the next 30 days.
How do I fix CVE-2021-39898?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-39898?
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