CVE-2023-4378

An issue has been discovered in GitLab CE/EE affecting all versions starting from 11.8 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. A malicious Maintainer can, under specific circumstances, leak the sentry token by changing the configured URL in the Sentry error tracking settings page. This was as a result of an incomplete fix for CVE-2022-4365.

CVSS v3.1

4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1

5.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

EPSS

0.51% chance of exploitation in the next 30 days, 41th percentile

Published

2023-09-01

Updated

2026-04-24

Proof-of-concept exploits (1)

• https://hackerone.com/reports/2104591

References

• CVE Record
• NVD entry

Related

• CVE-2023-43770
• CVE-2023-43786
• CVE-2023-4376
• CVE-2023-43791
• CVE-2023-43757
• CVE-2023-43795