What’s Vulnerable › Vulnerabilities

CVE-2021-39898

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-11-05 · updated 2026-06-17
• Weakness: CWE-200

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.

Affected products

• GitLab: from 10.6.0 before 14.1.7; from 14.2.0 before 14.2.5; 14.3.0 — fixed in 14.1.7, 14.2.5

How to fix

Upgrade to a fixed version: GitLab 14.1.7, 14.2.5. Check the vendor advisory for mitigations.

References

• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39898.json
• https://gitlab.com/gitlab-org/gitlab/-/issues/33734
• https://hackerone.com/reports/698068
• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39898.json
• https://gitlab.com/gitlab-org/gitlab/-/issues/33734
• https://hackerone.com/reports/698068

Get alerted when CVE-2021-39898 or the next vulnerability affects your stack