Critical
Security advisory
OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, AttachmentUploadServlet also saves user controlled data (`request.getInputStream()`) to a user specified location (`request.getHeader("File-Name")`). This issue may lead to arbitrary file upload which can be used to upload a WebShell to OneDev server. This issue is addressed in 4.0.3 by only allowing uploaded file to be in attachments folder. The webshell issue is not possible as OneDev never executes files in attachments folder.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-21245
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:45 UTC · Revision 1
Source evidence
OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, AttachmentUploadServlet also saves user controlled data (`request.getInputStream()`) to a user specified location (`request.getHeader("File-Name")`). This issue may lead to arbitrary file upload which can be used to upload a WebShell to OneDev server. This issue is addressed in 4.0.3 by only allowing uploaded file to be in attachments folder. The webshell issue is not possible as OneDev never executes files in attachments folder.
osv:CVE-2021-21245
Complete source record
{
"id": "28bc5feedd91a6e6e82cac10f7f4a930691bc66581ab6a0c7412a4fbdce15ef2",
"url": "https://osv.dev/vulnerability/CVE-2021-21245",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-21245",
"summary": "OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, AttachmentUploadServlet also saves user controlled data (`request.getInputStream()`) to a user specified location (`request.getHeader(\"File-Name\")`). This issue may lead to arbitrary file upload which can be used to upload a WebShell to OneDev server. This issue is addressed in 4.0.3 by only allowing uploaded file to be in attachments folder. The webshell issue is not possible as OneDev never executes files in attachments folder.",
"evidence": "osv:CVE-2021-21245",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2021-21245",
"aliases": [
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"GHSA-62m2-38q5-96w9"
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"metrics": [
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"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
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"affected": [
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"type": "GIT",
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{
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{
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"source": "REFERENCES_COMMIT"
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"2.0-beta-build119"
],
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],
"modified": "2026-10-20T14:28:03.071895461Z",
"provider": "osv",
"references": [
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"https://github.com/theonedev/onedev/commit/0c060153fb97c0288a1917efdb17cc426934dacb"
],
"provider_metadata": {}
},
"related_cves": [
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"value": "CVE-2021-21245",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 389002,
"published_at": "2021-01-15T21:15:13.413+00:00"
}