Security advisory
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
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"
}