Unintended Proxy or Intermediary (‘Confused Deputy’) in GitLab_CVE-2026-3160

5.8 / 10

MEDIUM

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

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user to view Jira issues outside the configured project scope due to an integration filter functioning only as a display control rather than enforcing access boundaries as specified.

Basic Information

ID CVE-2026-3160

Source GitLab

Published May 14, 2026 at 05:35

Affected Product

Vendor GitLab

Product GitLab

Version 13.7

Affected Versions GitLab GitLab 13.7
GitLab GitLab 18.10
GitLab GitLab 18.11

CWE Classification

CWE-441

References

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    "lastseen": "",
    "description": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user to view Jira issues outside the configured project scope due to an integration filter functioning only as a display control rather than enforcing access boundaries as specified.",
    "published": "2026-05-14T05:35:57.340Z",
    "modified": "2026-05-14T05:35:57.340Z",
    "type": "cve",
    "title": "Unintended Proxy or Intermediary ('Confused Deputy') in GitLab",
    "source": "GitLab",
    "references": "https://hackerone.com/reports/3566042\nhttps://gitlab.com/gitlab-org/gitlab/-/work_items/591354\nhttps://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/",
    "id": "CVE-2026-3160",
    "bulletinFamily": "",
    "cwe": [
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    "cvelist": null,
    "sourceData": "GitLab GitLab 13.7\nGitLab GitLab 18.10\nGitLab GitLab 18.11",
    "sourceHref": "",
    "cvss": {
        "score": 5.8,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
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        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
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    "product": "GitLab",
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}