CVE-2023-5226 (GCVE-0-2023-5226)

Vulnerability from cvelistv5 – Published: 2023-12-01 07:01 – Updated: 2025-11-20 04:10
VLAI?
Summary
An issue has been discovered in GitLab affecting all versions before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. Under certain circumstances, a malicious actor bypass prohibited branch checks using a specially crafted branch name to manipulate repository content in the UI.
Severity ?
4.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
https://gitlab.com/gitlab-org/gitlab/-/issues/426400 issue-tracking
https://hackerone.com/reports/2173053 technical-descriptionexploitpermissions-required
Impacted products
Vendor Product Version
GitLab GitLab Affected: 0 , < 16.4.3 (semver)
Affected: 16.5 , < 16.5.3 (semver)
Affected: 16.6 , < 16.6.1 (semver)
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
Thanks [shells3c](https://hackerone.com/shells3c) for reporting this vulnerability through our HackerOne bug bounty program
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T07:52:08.425Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "GitLab Issue #426400",
            "tags": [
              "issue-tracking",
              "x_transferred"
            ],
            "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/426400"
          },
          {
            "name": "HackerOne Bug Bounty Report #2173053",
            "tags": [
              "technical-description",
              "exploit",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/2173053"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "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": "16.4.3",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "16.5.3",
              "status": "affected",
              "version": "16.5",
              "versionType": "semver"
            },
            {
              "lessThan": "16.6.1",
              "status": "affected",
              "version": "16.6",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Thanks [shells3c](https://hackerone.com/shells3c) for reporting this vulnerability through our HackerOne bug bounty program"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue has been discovered in GitLab affecting all versions before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. Under certain circumstances, a malicious actor bypass prohibited branch checks using a specially crafted branch name to manipulate repository content in the UI."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-11-20T04:10:33.281Z",
        "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
        "shortName": "GitLab"
      },
      "references": [
        {
          "name": "GitLab Issue #426400",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/426400"
        },
        {
          "name": "HackerOne Bug Bounty Report #2173053",
          "tags": [
            "technical-description",
            "exploit",
            "permissions-required"
          ],
          "url": "https://hackerone.com/reports/2173053"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to versions 16.4.3, 16.5.3, 16.6.1 or above."
        }
      ],
      "title": "Improper Control of Generation of Code (\u0027Code Injection\u0027) in GitLab"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
    "assignerShortName": "GitLab",
    "cveId": "CVE-2023-5226",
    "datePublished": "2023-12-01T07:01:43.131Z",
    "dateReserved": "2023-09-27T13:01:23.089Z",
    "dateUpdated": "2025-11-20T04:10:33.281Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*\", \"versionEndExcluding\": \"16.4.3\", \"matchCriteriaId\": \"7269551A-80EB-4E8B-8022-0B66994C7601\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*\", \"versionEndExcluding\": \"16.4.3\", \"matchCriteriaId\": \"B9CF956D-DF30-47A7-8710-262AC4C76F2E\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*\", \"versionStartIncluding\": \"16.5.0\", \"versionEndExcluding\": \"16.5.3\", \"matchCriteriaId\": \"B1AC7763-4EA9-4E9A-8711-FEEA9D111D68\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*\", \"versionStartIncluding\": \"16.5.0\", \"versionEndExcluding\": \"16.5.3\", \"matchCriteriaId\": \"6B77E904-2562-4F78-A787-7F51871054BA\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gitlab:gitlab:16.6.0:*:*:*:community:*:*:*\", \"matchCriteriaId\": \"FAB408DE-FE19-4CD6-B026-44AF7AD36405\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gitlab:gitlab:16.6.0:*:*:*:enterprise:*:*:*\", \"matchCriteriaId\": \"8D5674D6-E26B-4F62-9B59-C15DEEDDB4B1\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"An issue has been discovered in GitLab affecting all versions before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. Under certain circumstances, a malicious actor bypass prohibited branch checks using a specially crafted branch name to manipulate repository content in the UI.\"}, {\"lang\": \"es\", \"value\": \"Se ha descubierto un problema en GitLab que afecta a todas las versiones anteriores a 16.4.3, todas las versiones a partir de 16.5 anteriores a 16.5.3, todas las versiones a partir de 16.6 anteriores a 16.6.1. En determinadas circunstancias, un actor malintencionado elude las comprobaciones de sucursales prohibidas utilizando un nombre de sucursal especialmente manipulado para manipular el contenido del repositorio en la interfaz de usuario.\"}]",
      "id": "CVE-2023-5226",
      "lastModified": "2024-11-21T08:41:19.753",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"cve@gitlab.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N\", \"baseScore\": 4.8, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 1.2, \"impactScore\": 3.6}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}]}",
      "published": "2023-12-01T07:15:12.003",
      "references": "[{\"url\": \"https://gitlab.com/gitlab-org/gitlab/-/issues/426400\", \"source\": \"cve@gitlab.com\", \"tags\": [\"Broken Link\", \"Vendor Advisory\"]}, {\"url\": \"https://hackerone.com/reports/2173053\", \"source\": \"cve@gitlab.com\", \"tags\": [\"Permissions Required\", \"Third Party Advisory\"]}, {\"url\": \"https://gitlab.com/gitlab-org/gitlab/-/issues/426400\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Broken Link\", \"Vendor Advisory\"]}, {\"url\": \"https://hackerone.com/reports/2173053\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Permissions Required\", \"Third Party Advisory\"]}]",
      "sourceIdentifier": "cve@gitlab.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"cve@gitlab.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-94\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-5226\",\"sourceIdentifier\":\"cve@gitlab.com\",\"published\":\"2023-12-01T07:15:12.003\",\"lastModified\":\"2024-11-21T08:41:19.753\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An issue has been discovered in GitLab affecting all versions before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. Under certain circumstances, a malicious actor bypass prohibited branch checks using a specially crafted branch name to manipulate repository content in the UI.\"},{\"lang\":\"es\",\"value\":\"Se ha descubierto un problema en GitLab que afecta a todas las versiones anteriores a 16.4.3, todas las versiones a partir de 16.5 anteriores a 16.5.3, todas las versiones a partir de 16.6 anteriores a 16.6.1. En determinadas circunstancias, un actor malintencionado elude las comprobaciones de sucursales prohibidas utilizando un nombre de sucursal especialmente manipulado para manipular el contenido del repositorio en la interfaz de usuario.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve@gitlab.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N\",\"baseScore\":4.8,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.2,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"cve@gitlab.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-94\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*\",\"versionEndExcluding\":\"16.4.3\",\"matchCriteriaId\":\"7269551A-80EB-4E8B-8022-0B66994C7601\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*\",\"versionEndExcluding\":\"16.4.3\",\"matchCriteriaId\":\"B9CF956D-DF30-47A7-8710-262AC4C76F2E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*\",\"versionStartIncluding\":\"16.5.0\",\"versionEndExcluding\":\"16.5.3\",\"matchCriteriaId\":\"B1AC7763-4EA9-4E9A-8711-FEEA9D111D68\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*\",\"versionStartIncluding\":\"16.5.0\",\"versionEndExcluding\":\"16.5.3\",\"matchCriteriaId\":\"6B77E904-2562-4F78-A787-7F51871054BA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gitlab:gitlab:16.6.0:*:*:*:community:*:*:*\",\"matchCriteriaId\":\"FAB408DE-FE19-4CD6-B026-44AF7AD36405\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gitlab:gitlab:16.6.0:*:*:*:enterprise:*:*:*\",\"matchCriteriaId\":\"8D5674D6-E26B-4F62-9B59-C15DEEDDB4B1\"}]}]}],\"references\":[{\"url\":\"https://gitlab.com/gitlab-org/gitlab/-/issues/426400\",\"source\":\"cve@gitlab.com\",\"tags\":[\"Broken Link\",\"Vendor Advisory\"]},{\"url\":\"https://hackerone.com/reports/2173053\",\"source\":\"cve@gitlab.com\",\"tags\":[\"Permissions Required\",\"Third Party Advisory\"]},{\"url\":\"https://gitlab.com/gitlab-org/gitlab/-/issues/426400\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Broken Link\",\"Vendor Advisory\"]},{\"url\":\"https://hackerone.com/reports/2173053\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Permissions Required\",\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.