CVE-2026-100104
Server-Side Request Forgery (SSRF) in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.3 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to perform server-side request forgery and reach internal network resources due to a time-of-check to time-of-use race condition in URL validation during repository import operations.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
3.5
Server-Side Request Forgery (SSRF) in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.3 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to perform server-side request forgery and reach internal network resources due to a time-of-check to time-of-use race condition in URL validation during repository import operations.
- Record
CVE-2026-100104- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N - Weakness
- CWE-918
- Updated
- 2026-11-02
EUVDEUVD-2026-98212
3.5
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.3 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to perform server-side request forgery and reach internal network resources due to a time-of-check to time-of-use race condition in URL validation during repository import operations.
- Record
EUVD-2026-98212- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-mv9g-3c33-88m6
3.5
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.3 before 19.2.8, 19...
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.3 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to perform server-side request forgery and reach internal network resources due to a time-of-check to time-of-use race condition in URL validation during repository import operations.
- Record
GHSA-mv9g-3c33-88m6- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N - Weakness
- CWE-918
- Updated
- 2026-11-02
NVD
3.5
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.3 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to perform server-side request forgery and reach internal network resources due to a time-of-check to time-of-use race condition in URL validation during repository import operations.
- Record
CVE-2026-100104- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N - Weakness
- CWE-918
- Updated
- 2026-11-02
OSV
3.5
Server-Side Request Forgery (SSRF) in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.3 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to perform server-side request forgery and reach internal network resources due to a time-of-check to time-of-use race condition in URL validation during repository import operations.
- Record
CVE-2026-100104- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N - Weakness
- CWE-918
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-100104
3.5
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.3 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to perform server-side request forgery and reach internal network resources due to a time-of-check to time-of-use race condition in URL validation during repository import operations.
- Record
UBUNTU-CVE-2026-100104- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N - Updated
- 2026-11-02
OSVBIT-gitlab-2026-100104 No score
Server-Side Request Forgery (SSRF) in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.3 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to perform server-side request forgery and reach internal network resources due to a time-of-check to time-of-use race condition in URL validation during repository import operations.
- Record
BIT-gitlab-2026-100104- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-100104 is a low vulnerability (CVSS 3.5) in Gitlab, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.20%, the 9th percentile. Fixed in gitlab 19.2.8.
References
gitlab.com/gitlab-org/gitlab/-/work_items/594194
docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released
nvd.nist.gov/vuln/detail/CVE-2026-100104
github.com/advisories/GHSA-mv9g-3c33-88m6
github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100104.json
gitlab.com/gitlab-org/gitlab
ubuntu.com/security/CVE-2026-100104
cve.org/CVERecord?id=CVE-2026-100104