What is CVE-2023-1401?

CVE-2023-1401 is a medium-severity vulnerability in GitLab, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 5.0/10. Published 2023-07-26.

How severe is CVE-2023-1401?

Medium severity. CVSS v3 base score is 5.0 out of 10.

Vulnerability in GitLab

CVE-2023-1401

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.

Published 2023-07-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (42.2th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

GitLab — versions 3.0.29

Weakness classification (CWE)

CWE-201 — Insertion of Sensitive Information into Sent Data

References

gitlab.com/gitlab-org/gitlab/-/issues/396533 (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
hackerone.com/reports/1889255 (Permissions Required, technical-description, permissions-required, Third Party Advisory, exploit)

Frequently asked questions

What is CVE-2023-1401?: CVE-2023-1401 is a medium-severity vulnerability in GitLab, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 5.0/10. Published 2023-07-26.
How severe is CVE-2023-1401?: Medium severity. CVSS v3 base score is 5.0 out of 10.