CVE-2026-105777
Published:October 21, 2026
Updated:October 23, 2026
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6.5 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have retrieved sensitive internal server credentials due to improper filtering of internal response headers.
Affected Packages
https://github.com/gitlabhq/gitlabhq.git (GITHUB):
Affected version(s) >=v19.0.0-rc42 <v19.3.6Fix Suggestion:
Update to version v19.3.6https://github.com/gitlabhq/gitlabhq.git (GITHUB):
Affected version(s) >=v19.4.0-rc42 <v19.4.3Fix Suggestion:
Update to version v19.4.3https://github.com/gitlabhq/gitlabhq.git (GITHUB):
Affected version(s) >=v19.5.0-rc42 <v19.5.1Fix Suggestion:
Update to version v19.5.1Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Insertion of Sensitive Information Into Sent Data
EPSS
Base Score:
0.25