What’s Vulnerable › Vulnerabilities

CVE-2023-1401: Insertion of Sensitive Information Into Sent Data in GitLab

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-07-26 · updated 2026-06-17
• Weakness: CWE-201

Description

An issue has been discovered in GitLab DAST scanner affecting all versions starting from 3.0.29 before 4.0.5, in which the DAST scanner leak cross site cookies on redirect during authorization.

Affected products

• GitLab: from 3.0.29 before 4.0.5 — fixed in 4.0.5

How to fix

Upgrade to a fixed version: GitLab 4.0.5. Check the vendor advisory for mitigations.

References

• https://gitlab.com/gitlab-org/gitlab/-/issues/396533
• https://hackerone.com/reports/1889255
• https://gitlab.com/gitlab-org/gitlab/-/issues/396533
• https://hackerone.com/reports/1889255

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