CVE-2026-6976

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Source
https://cve.org/CVERecord?id=CVE-2026-6976
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6976.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-6976
Aliases
Downstream
Related
Published
2026-06-11T10:20:11.436Z
Modified
2026-08-27T11:30:40.054291377Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N CVSS Calculator
Summary
Authorization Bypass Through User-Controlled Key in GitLab
Details

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to hide changes from merge request diff views due to improper input handling of file names.

Database specific 
{
    "cwe_ids": [
        "CWE-639"
    ],
    "cna_assigner": "GitLab",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "15.9"
                },
                {
                    "fixed": "18.10.8"
                },
                {
                    "introduced": "18.11"
                },
                {
                    "fixed": "18.11.5"
                },
                {
                    "introduced": "19.0"
                },
                {
                    "fixed": "19.0.2"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "introduced": "15.9"
                },
                {
                    "fixed": "18.10.8"
                },
                {
                    "introduced": "18.11"
                },
                {
                    "fixed": "18.11.5"
                },
                {
                    "introduced": "19.0"
                },
                {
                    "fixed": "19.0.2"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6976.json"
}
References

Affected packages

Git / gitlab.com/gitlab-org/gitlab

Affected ranges

Type
GIT
Repo
https://gitlab.com/gitlab-org/gitlab
Events
Introduced
b107c0bae0871a67dee31ad8e52550d32c4afb66
Fixed
691141944493a0faa4bc3229af2e6a8663e58653
Introduced
1060c7b0ff78be7c8abe8fd6d23dcb1ca493fd78
Fixed
9b638f3c6869a41d392cc3f77cfd68c8a06bda5f
Introduced
f07e3c5b3c8128be5db112e5b2b618fe31ea1b35
Fixed
86c99d562e4d6929fc43de673da9e48155f9ad95
Database specific
Show details 
{
    "cpe": [
        "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
        "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*"
    ],
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "15.9.0"
        },
        {
            "fixed": "18.10.8"
        },
        {
            "introduced": "18.11.0"
        },
        {
            "fixed": "18.11.5"
        },
        {
            "introduced": "19.0.0"
        },
        {
            "fixed": "19.0.2"
        }
    ]
}

Affected versions

v18.*
v18.11.0-ee
v18.11.2-ee
v19.*
v19.0.0-ee

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6976.json"