CVE-2026-12436
Improperly Controlled Modification of Dynamically-Determined Object Attributes in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.
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
- High
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Improperly Controlled Modification of Dynamically-Determined Object Attributes in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.
- Record
CVE-2026-12436- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L - Weakness
- CWE-915
- Updated
- 2026-11-02
EUVDEUVD-2026-50482
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.
- Record
EUVD-2026-50482- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-94p8-87ff-w336
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19...
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.
- Record
GHSA-94p8-87ff-w336- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L - Weakness
- CWE-915
- Updated
- 2026-11-02
NVD
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.
- Record
CVE-2026-12436- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L - Weakness
- CWE-915
- Updated
- 2026-11-02
OSV
Improperly Controlled Modification of Dynamically-Determined Object Attributes in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.
- Record
CVE-2026-12436- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L - Weakness
- CWE-915
- Updated
- 2026-11-02
OSVBIT-gitlab-2026-12436 No score
Improperly Controlled Modification of Dynamically-Determined Object Attributes in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.
- Record
BIT-gitlab-2026-12436- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gitlabBitnami |
18.0.0 up to 19.0.5, 19.1.0 up to 19.1.3, 19.2.0 up to 19.2.1 | 19.0.519.1.319.2.1 |
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-2026-12436 is a high vulnerability (CVSS 8.4) in Gitlab, published July 29, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 40th percentile. Fixed in gitlab 19.0.5.
References
gitlab.com/gitlab-org/gitlab/-/work_items/603223
hackerone.com/reports/3800511
docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released
nvd.nist.gov/vuln/detail/CVE-2026-12436
github.com/advisories/GHSA-94p8-87ff-w336