{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "11.8"
              },
              {
                "fixed": "16.1.5"
              }
            ]
          },
          "events": [
            {
              "introduced": "002a28279f5b3fd229f929bb1f40eb7b5fc87ee9"
            },
            {
              "fixed": "075efefa5f88454cb1afda1f0270e91edcb55ed3"
            }
          ],
          "repo": "https://gitlab.com/gitlab-org/gitlab",
          "type": "GIT"
        },
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "16.2"
              },
              {
                "fixed": "16.2.5"
              }
            ]
          },
          "events": [
            {
              "introduced": "3adc0fe6e7c163bedd7faa5f0c4d1e5fbb6bf3c5"
            },
            {
              "fixed": "16c20745a286eb674f48366d84abe5f4dd5fb2c6"
            }
          ],
          "repo": "https://gitlab.com/gitlab-org/gitlab",
          "type": "GIT"
        },
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "16.3"
              },
              {
                "fixed": "16.3.1"
              }
            ]
          },
          "events": [
            {
              "introduced": "3dfd4e0bcc7eae4330e7fed87ec74bee9a8bdf2d"
            },
            {
              "fixed": "67bb799df143b3adf43688cfa074e10c8a1d9a0c"
            }
          ],
          "repo": "https://gitlab.com/gitlab-org/gitlab",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "GitLab",
    "cwe_ids": [
      "CWE-201"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4378.json"
  },
  "details": "An issue has been discovered in GitLab CE/EE affecting all versions starting from 11.8 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. A malicious Maintainer can, under specific circumstances, leak the sentry token by changing the configured URL in the Sentry error tracking settings page. This was as a result of an incomplete fix for CVE-2022-4365.",
  "id": "CVE-2023-4378",
  "modified": "2026-04-01T23:08:10.938886267Z",
  "published": "2023-09-01T10:30:31.991Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4378.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4378"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/422134"
    },
    {
      "type": "PACKAGE",
      "url": "git://git@gitlab.com:gitlab-org/gitlab.git"
    },
    {
      "type": "EVIDENCE",
      "url": "https://hackerone.com/reports/2104591"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Insertion of Sensitive Information Into Sent Data in GitLab"
}