What’s Vulnerable › Vulnerabilities

CVE-2021-39893

• Severity: high (CVSS 7.5 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: 2021-10-05 · updated 2026-06-17
• Weakness: CWE-862

Description

A potential DOS vulnerability was discovered in GitLab starting with version 9.1 that allowed parsing files without authorisation.

Affected products

• GitLab: from 9.1.0 before 14.1.7; from 14.2.0 before 14.2.5; from 14.3.0 before 14.3.1 — fixed in 14.1.7, 14.2.5, 14.3.1

How to fix

Upgrade to a fixed version: GitLab 14.1.7, 14.2.5, 14.3.1. Check the vendor advisory for mitigations.

References

• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39893.json
• https://gitlab.com/gitlab-org/gitlab/-/issues/340076
• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39893.json
• https://gitlab.com/gitlab-org/gitlab/-/issues/340076

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