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Critical

Security advisory

Type: advisorySources: OSVCVE: CVE-2018-25332

GitBucket 4.23.1 contains an unauthenticated remote code execution vulnerability that allows attackers to execute arbitrary commands by exploiting weak secret token generation and insecure file upload functionality. Attackers can brute-force the Blowfish encryption key, upload a malicious JAR plugin via the git-lfs endpoint, and execute system commands through an exposed exploit endpoint.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2018-25332
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 10:30 UTC · Revision 1

Source evidence

CVE-2018-25332

core-osv · Original source

Published 17 May 2026, 13:16 UTC

GitBucket 4.23.1 contains an unauthenticated remote code execution vulnerability that allows attackers to execute arbitrary commands by exploiting weak secret token generation and insecure file upload functionality. Attackers can brute-force the Blowfish encryption key, upload a malicious JAR plugin via the git-lfs endpoint, and execute system commands through an exposed exploit endpoint.

osv:CVE-2018-25332
Complete source record
{
  "id": "b1fbd1fda1a4261ac2704a90fdf6316d7182fadc34d4593824e4515d4359748c",
  "url": "https://osv.dev/vulnerability/CVE-2018-25332",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-25332",
    "summary": "GitBucket 4.23.1 contains an unauthenticated remote code execution vulnerability that allows attackers to execute arbitrary commands by exploiting weak secret token generation and insecure file upload functionality. Attackers can brute-force the Blowfish encryption key, upload a malicious JAR plugin via the git-lfs endpoint, and execute system commands through an exposed exploit endpoint.",
    "evidence": "osv:CVE-2018-25332",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2018-25332",
      "aliases": [
        "CVE-2018-25332"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/gitbucket/gitbucket",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5913bcd3095e7e7b70982a442286fff08f4ec704"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gitbucket:gitbucket:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.24.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.23.1",
            "4.23.0",
            "4.22.0",
            "4.21.2",
            "4.21.1",
            "4.21.0",
            "4.20.0",
            "4.19.2",
            "4.19.1",
            "4.19.0",
            "4.18.0",
            "4.17.0",
            "4.16.0",
            "4.15.0",
            "4.14",
            "4.13",
            "4.12",
            "4.11",
            "4.10",
            "4.9",
            "4.8",
            "4.7.1",
            "4.7",
            "4.6",
            "4.5",
            "4.4",
            "4.3",
            "4.2.1",
            "4.2",
            "4.1",
            "4.0",
            "3.14",
            "3.13",
            "3.12",
            "3.11",
            "3.10",
            "3.9",
            "3.8",
            "3.7",
            "3.6",
            "3.5",
            "3.4",
            "3.3",
            "3.2",
            "3.1.1",
            "3.1",
            "3.0",
            "2.8",
            "2.7",
            "2.6",
            "2.4.1",
            "2.4",
            "2.3",
            "2.2",
            "2.1",
            "2.0",
            "1.13",
            "1.12",
            "1.10",
            "1.9",
            "1.8",
            "1.7",
            "1.2",
            "1.1",
            "1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-25332.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:27.180787492Z",
      "provider": "osv",
      "references": [
        "https://security.szurek.pl/",
        "https://www.vulncheck.com/advisories/gitbucket-unauthenticated-remote-code-execution",
        "https://www.exploit-db.com/exploits/44668",
        "https://github.com/gitbucket/gitbucket"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-25332",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381721,
  "published_at": "2026-05-17T13:16:44.84+00:00"
}