CVE-2026-105777: 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…
CVE-2026-105777 analysis covering impact, affected products, versions, remediation, and cross-checked defender guidance.
CVE-2026-105777 is a vulnerability published by NVD on 10/22/2026.
What happened
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 products and versions
- NVD has not published a normalized affected-product configuration yet.
Severity and weakness
CVSS: MEDIUM 4.3. Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Weaknesses: CWE-201.
Known exploitation
No CISA KEV entry is currently attached to the NVD record.
What defenders should do
- Identify whether the affected product and version range exists in production.
- Review vendor advisories and release notes before change windows.
- Patch, upgrade, disable the vulnerable component, or apply vendor mitigations.
- Verify the running version after deployment, not only the package inventory.
Official and supporting references
- No vendor advisory tagged by NVD at draft time.