CVE-2026-1184

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Source
https://cve.org/CVERecord?id=CVE-2026-1184
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1184.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-1184
Aliases
Downstream
Published
2026-05-14T05:37:02Z
Modified
2026-08-27T11:31:04Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Deserialization of Untrusted Data in GitLab
Details

GitLab has remediated an issue in GitLab EE affecting all versions from 11.9 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to cause denial of service by uploading a specially crafted file due to improper validation.

Database specific 
{
    "cna_assigner": "GitLab",
    "cwe_ids": [
        "CWE-502"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1184.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "11.9"
                },
                {
                    "fixed": "18.9.7"
                },
                {
                    "introduced": "18.10"
                },
                {
                    "fixed": "18.10.6"
                },
                {
                    "introduced": "18.11"
                },
                {
                    "fixed": "18.11.3"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "extracted_events": [
                {
                    "introduced": "11.9"
                },
                {
                    "fixed": "18.9.7"
                },
                {
                    "introduced": "18.10"
                },
                {
                    "fixed": "18.10.6"
                },
                {
                    "introduced": "18.11"
                },
                {
                    "fixed": "18.11.3"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}
References

Affected packages

Git / gitlab.com/gitlab-org/gitlab

Affected ranges

Type
GIT
Repo
https://gitlab.com/gitlab-org/gitlab
Events
Introduced
2f3536bdda88ae962d4f67ced68af6efd82254f1
Fixed
d2242c5752a152db3c281d8a9d1e7f248e1654a9
Introduced
57c08314af5bc8f317b1967330f92ed029e2c628
Fixed
f80804c4e73fb0404af24e88ffb5246c0aeeda40
Introduced
1060c7b0ff78be7c8abe8fd6d23dcb1ca493fd78
Fixed
daa4145c8330213081c57260b569539e3b157b87
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
    "extracted_events": [
        {
            "introduced": "11.9.0"
        },
        {
            "fixed": "18.9.7"
        },
        {
            "introduced": "18.10.0"
        },
        {
            "fixed": "18.10.6"
        },
        {
            "introduced": "18.11.0"
        },
        {
            "fixed": "18.11.3"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

v18.*
v18.10.0-ee
v18.10.2-ee
v18.10.5-ee
v18.11.0-ee
v18.11.2-ee

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1184.json"