CVE-2026-12436

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Source
https://cve.org/CVERecord?id=CVE-2026-12436
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-12436.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-12436
Aliases
Downstream
Related
Published
2026-07-29T19:00:36Z
Modified
2026-08-27T11:30:50Z
Severity
  • 8.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L CVSS Calculator
Summary
Improperly Controlled Modification of Dynamically-Determined Object Attributes in GitLab
Details

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.

Database specific 
{
    "cna_assigner": "GitLab",
    "cwe_ids": [
        "CWE-915"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/12xxx/CVE-2026-12436.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "18.0"
                },
                {
                    "fixed": "19.0.5"
                },
                {
                    "introduced": "19.1"
                },
                {
                    "fixed": "19.1.3"
                },
                {
                    "introduced": "19.2"
                },
                {
                    "fixed": "19.2.1"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "extracted_events": [
                {
                    "introduced": "18.0"
                },
                {
                    "fixed": "19.0.5"
                },
                {
                    "introduced": "19.1"
                },
                {
                    "fixed": "19.1.3"
                },
                {
                    "introduced": "19.2"
                },
                {
                    "fixed": "19.2.1"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}
References

Affected packages

Git / gitlab.com/gitlab-org/gitlab

Affected ranges

Type
GIT
Repo
https://gitlab.com/gitlab-org/gitlab
Events
Introduced
504fd9e5236e13d674e051c6b8a1e9892b371c58
Fixed
e5e2c82b8e3d4db7b86f404c40483e32e3d0d0d8
Introduced
67581074a0aab1f53cdafe7eead5f5d07f3afec8
Fixed
f7e0d7bb4fa4f3f2f004b6bfa501f950285d87df
Introduced
68485a1eb627c9a992f266263157327649822db3
Last Affected
68485a1eb627c9a992f266263157327649822db3
Database specific
Show details 
{
    "cpe": [
        "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
        "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
        "cpe:2.3:a:gitlab:gitlab:19.2.0:*:*:*:community:*:*:*",
        "cpe:2.3:a:gitlab:gitlab:19.2.0:*:*:*:enterprise:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "18.0.0"
        },
        {
            "fixed": "19.0.5"
        },
        {
            "introduced": "19.1.0"
        },
        {
            "fixed": "19.1.3"
        },
        {
            "introduced": "19.2.0"
        },
        {
            "last_affected": "19.2.0"
        }
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING"
    ]
}

Affected versions

19.*
19.2.0
v19.*
v19.1.0-ee
v19.2.0-ee

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-12436.json"