Missing Authorization in GitLab_CVE-2026-5296

4.3 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 18.7 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that when foundational flows were enabled at the group level, could have allowed an authenticated user with developer-role permissions to bypass flow restrictions under certain conditions.

Basic Information

ID CVE-2026-5296

Source GitLab

Published May 27, 2026 at 17:55

Affected Product

Vendor GitLab

Product GitLab

Version 18.7

Affected Versions GitLab GitLab 18.7
GitLab GitLab 18.11
GitLab GitLab 19.0

CWE Classification

CWE-862

References

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    "lastseen": "",
    "description": "GitLab has remediated an issue in GitLab EE affecting all versions from 18.7 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that when foundational flows were enabled at the group level, could have allowed an authenticated user with developer-role permissions to bypass flow restrictions under certain conditions.",
    "published": "2026-05-27T17:55:18.937Z",
    "modified": "2026-05-27T17:55:18.937Z",
    "type": "cve",
    "title": "Missing Authorization in GitLab",
    "source": "GitLab",
    "references": "https://gitlab.com/gitlab-org/gitlab/-/work_items/595423\nhttps://hackerone.com/reports/3626303\nhttps://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/",
    "id": "CVE-2026-5296",
    "bulletinFamily": "",
    "cwe": [
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    "cvelist": null,
    "sourceData": "GitLab GitLab 18.7\nGitLab GitLab 18.11\nGitLab GitLab 19.0",
    "sourceHref": "",
    "cvss": {
        "score": 4.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "GitLab",
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    "ai_description": "",
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