FKIE_CVE-2026-6976

Vulnerability from fkie_nvd - Published: 2026-06-11 12:16 - Updated: 2026-06-11 17:34
Severity
3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.9 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 with developer-role permissions to hide changes from merge request diff views due to improper input handling of file names.
References
cve@gitlab.comhttps://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/Release Notes
cve@gitlab.comhttps://gitlab.com/gitlab-org/gitlab/-/work_items/598165Issue Tracking
cve@gitlab.comhttps://hackerone.com/reports/3638136Permissions Required
Impacted products
Vendor Product Version
gitlab gitlab *
gitlab gitlab *
gitlab gitlab *
gitlab gitlab *
gitlab gitlab *
gitlab gitlab *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
              "matchCriteriaId": "1D0971DD-D736-4736-938C-0623B5A4B498",
              "versionEndExcluding": "18.10.8",
              "versionStartIncluding": "15.9.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "B12AF75C-B1B4-4FF4-A133-3E7D134DE8D5",
              "versionEndExcluding": "18.10.8",
              "versionStartIncluding": "15.9.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
              "matchCriteriaId": "D3442E29-F164-40E0-B972-F0EEE8ED4FD1",
              "versionEndExcluding": "18.11.5",
              "versionStartIncluding": "18.11.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "7FB0D7FE-9A4F-45D8-B564-31DF9F2F4066",
              "versionEndExcluding": "18.11.5",
              "versionStartIncluding": "18.11.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
              "matchCriteriaId": "A6FAB200-DFB3-42FC-A901-8E5C0A3CA706",
              "versionEndExcluding": "19.0.2",
              "versionStartIncluding": "19.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "1A666CA8-8D31-4765-87ED-D0F56E9DAFF0",
              "versionEndExcluding": "19.0.2",
              "versionStartIncluding": "19.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.9 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 with developer-role permissions to hide changes from merge request diff views due to improper input handling of file names."
    }
  ],
  "id": "CVE-2026-6976",
  "lastModified": "2026-06-11T17:34:47.923",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.7,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 2.5,
        "source": "cve@gitlab.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-06-11T12:16:32.467",
  "references": [
    {
      "source": "cve@gitlab.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/"
    },
    {
      "source": "cve@gitlab.com",
      "tags": [
        "Issue Tracking"
      ],
      "url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/598165"
    },
    {
      "source": "cve@gitlab.com",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://hackerone.com/reports/3638136"
    }
  ],
  "sourceIdentifier": "cve@gitlab.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        }
      ],
      "source": "cve@gitlab.com",
      "type": "Primary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.