CVE-2025-6454

An issue has been discovered in GitLab CE/EE affecting all versions from 16.11 before 18.1.6, 18.2 before 18.2.6, and 18.3 before 18.3.2 that could have allowed authenticated users to make unintended internal requests through proxy environments by injecting crafted sequences.

CVSS v3.1

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1

8.5 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

0.69% chance of exploitation in the next 30 days, 50th percentile

Published

2025-09-12

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3162711

References

• CVE Record
• NVD entry

Related

• CVE-2025-6453
• CVE-2025-6455
• CVE-2025-64525
• CVE-2025-6456
• CVE-2025-64523
• CVE-2025-6457