CVE-2023-3909

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Source
https://nvd.nist.gov/vuln/detail/CVE-2023-3909
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-3909.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-3909
Aliases
Downstream
Published
2023-11-06T12:08:45.129Z
Modified
2025-11-29T15:22:46.455827Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
Inefficient Regular Expression Complexity in GitLab
Details

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.3 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. A Regular Expression Denial of Service was possible by adding a large string in timeout input in gitlab-ci.yml file.

Database specific 
{
    "cna_assigner": "GitLab",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3909.json",
    "cwe_ids": [
        "CWE-1333"
    ]
}
References

Affected packages

Git / gitlab.com/gitlab-org/gitlab

Affected ranges

Type
GIT
Repo
https://gitlab.com/gitlab-org/gitlab
Events
Introduced
c5ab21eda575676ffc46b85cab3456473c0357c6
Fixed
128862473d18a7df991090bb25688a8c81fcb0fe
Database specific 
{
    "versions": [
        {
            "introduced": "12.3"
        },
        {
            "fixed": "16.3.6"
        }
    ]
}
Type
GIT
Repo
https://gitlab.com/gitlab-org/gitlab
Events
Introduced
e4c1c182610739c1b1d10a8eacbea1f5aa837ad6
Fixed
385b9a2727ad972efe1fcdca3a61c447329ecd09
Database specific 
{
    "versions": [
        {
            "introduced": "16.4"
        },
        {
            "fixed": "16.4.2"
        }
    ]
}
Type
GIT
Repo
https://gitlab.com/gitlab-org/gitlab
Events
Introduced
fc87c9d4cca1536abcf902b4128f5c2004d87162
Fixed
55da9ccb652fcf67641114264ecded0dab88f4dc
Database specific 
{
    "versions": [
        {
            "introduced": "16.5"
        },
        {
            "fixed": "16.5.1"
        }
    ]
}

Affected versions

v16.*

v16.4.0-ee
v16.4.1-ee
v16.5.0-ee