CVE-2026-8589

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Source
https://cve.org/CVERecord?id=CVE-2026-8589
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-8589.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-8589
Aliases
Downstream
Related
Published
2026-06-11T10:20:01.515Z
Modified
2026-08-27T11:30:57.760143077Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N CVSS Calculator
Summary
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
Details

GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 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 to add unauthorized email addresses to a targeted user's account due to improper sanitization of user-supplied input in certain group setting fields.

Database specific 
{
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8589.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "13.1.4"
                },
                {
                    "fixed": "18.10.8"
                },
                {
                    "introduced": "18.11"
                },
                {
                    "fixed": "18.11.5"
                },
                {
                    "introduced": "19.0"
                },
                {
                    "fixed": "19.0.2"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "introduced": "13.1.4"
                },
                {
                    "fixed": "18.10.8"
                },
                {
                    "introduced": "18.11"
                },
                {
                    "fixed": "18.11.5"
                },
                {
                    "introduced": "19.0"
                },
                {
                    "fixed": "19.0.2"
                }
            ]
        }
    ],
    "cna_assigner": "GitLab"
}
References

Affected packages

Git / gitlab.com/gitlab-org/gitlab

Affected ranges

Type
GIT
Repo
https://gitlab.com/gitlab-org/gitlab
Events
Introduced
66acdb3d3e9af21c4ce155234a370a298bda2a27
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": "13.1.4"
        },
        {
            "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-2026-8589.json"