github - ghsa-cpx5-2q84-prc5

ghsa-cpx5-2q84-prc5

Vulnerability from github

Published

2025-12-11 09:31

Modified

2025-12-11 09:31

Severity ?

3.5 (Low) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

Details

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.6 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to leak sensitive information from specifically crafted merge request titles.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-12734"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-116"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-11T08:15:51Z",
    "severity": "LOW"
  },
  "details": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.6 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to leak sensitive information from specifically crafted merge request titles.",
  "id": "GHSA-cpx5-2q84-prc5",
  "modified": "2025-12-11T09:31:26Z",
  "published": "2025-12-11T09:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-12734"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/3379381"
    },
    {
      "type": "WEB",
      "url": "https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/579573"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-12734 (GCVE-0-2025-12734)

Vulnerability from cvelistv5

Published

2025-12-11 07:32

Modified

2025-12-11 14:42

Severity ?

3.5 (Low) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

CWE

CWE-116 - Improper Encoding or Escaping of Output

Summary

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.6 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to leak sensitive information from specifically crafted merge request titles.

References

URL

Tags

	https://gitlab.com/gitlab-org/gitlab/-/issues/579573	issue-tracking, permissions-required
	https://hackerone.com/reports/3379381	technical-description, exploit, permissions-required
	https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/

Impacted products

	Vendor	Product	Version
	GitLab	GitLab	Version: 15.6 ≤ Version: 18.5 ≤ Version: 18.6 ≤ cpe:2.3:a:gitlab:gitlab::::::::

Show details on NVD website

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-12734",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-11T14:42:27.723320Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-11T14:42:33.688Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "GitLab",
          "repo": "git://git@gitlab.com:gitlab-org/gitlab.git",
          "vendor": "GitLab",
          "versions": [
            {
              "lessThan": "18.4.6",
              "status": "affected",
              "version": "15.6",
              "versionType": "semver"
            },
            {
              "lessThan": "18.5.4",
              "status": "affected",
              "version": "18.5",
              "versionType": "semver"
            },
            {
              "lessThan": "18.6.2",
              "status": "affected",
              "version": "18.6",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Thanks [joaxcar](https://hackerone.com/joaxcar) for reporting this vulnerability through our HackerOne bug bounty program"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.6 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to leak sensitive information from specifically crafted merge request titles."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.5,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-116",
              "description": "CWE-116: Improper Encoding or Escaping of Output",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-11T07:32:01.735Z",
        "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
        "shortName": "GitLab"
      },
      "references": [
        {
          "name": "GitLab Issue #579573",
          "tags": [
            "issue-tracking",
            "permissions-required"
          ],
          "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/579573"
        },
        {
          "name": "HackerOne Bug Bounty Report #3379381",
          "tags": [
            "technical-description",
            "exploit",
            "permissions-required"
          ],
          "url": "https://hackerone.com/reports/3379381"
        },
        {
          "url": "https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to versions 18.4.6, 18.5.4, 18.6.2 or above."
        }
      ],
      "title": "Improper Encoding or Escaping of Output in GitLab"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
    "assignerShortName": "GitLab",
    "cveId": "CVE-2025-12734",
    "datePublished": "2025-12-11T07:32:01.735Z",
    "dateReserved": "2025-11-04T22:33:43.047Z",
    "dateUpdated": "2025-12-11T14:42:33.688Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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