cve.bz

CVE-2021-21242

9.8 criticalEPSS 74%

Critical (9.8) in onedev project onedev. EPSS 74% chance of exploitation in the next 30 days.

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, there is a critical vulnerability which can lead to pre-auth remote code execution. AttachmentUploadServlet deserializes untrusted data from the `Attachment-Support` header. This Servlet does not enforce any authentication or authorization checks. This issue may lead to pre-auth remote code execution. This issue was fixed in 4.0.3 by removing AttachmentUploadServlet and not using deserialization

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
74% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CWEs
CWE-502, CWE-74
Published
Modified
Record from
the NVD, synced

Affected

References

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