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TI-2021-04349 Aliases CVE-2021-21246

Pre-Auth Access token leak

Priority HIGH 68CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, the REST UserResource endpoint performs a security check to make sure that only administrators can list user details. However for the `/users/{id}` endpoint there are no security checks enforced so it is possible to retrieve arbitrary user details including their Access Tokens! These access tokens can be used to access the API or clone code in the build spec via the HTTP(S) protocol. It has permissions to all projects accessible by the user account. This issue may lead to `Sensitive data leak` and leak the Access Token which can be used to impersonate the administrator or any other users. This issue was addressed in 4.0.3 by removing user info from restful api.

Why it matters now

EPSS 0.49051 98th percentileScored 2026-11-07
Fix Fixed onedev (theonedev): 4.0.3

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
theonedevonedevbefore 4.0.34.0.3Patch availableCNA
  • onedev Vendortheonedev Affected before 4.0.3 Fixed in 4.0.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:onedev_project:onedev:*:*:*:*:*:*:*:*before 4.0.3Vulnerabletheonedev
  • cpe:2.3:a:onedev_project:onedev:*:*:*:*:*:*:*:* Versions before 4.0.3 Vulnerable ·theonedev

Remediation

  • Fix · CNA onedev (theonedev) Fixed in 4.0.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-21246

References

Patch 1

Advisory 1

  • TI-2021-04345 Pre-Auth Unsafe Deserialization on AttachmentUploadServet CVSS 3.1CRITICAL 10.0
  • TI-2022-18585 CI/CD Docker Escape in OneDev CVSS 3.1CRITICAL 9.9
  • TI-2022-18584 Access Control Bypass in Onedev CVSS 3.1CRITICAL 9.8
  • TI-2021-04346 Pre-Auth Unsafe Deserialization on KubernetesResource CVSS 3.1CRITICAL 10.0
  • TI-2022-18587 Git Repository Disclosure in Onedev CVSS 3.1HIGH 7.5
  • TI-2024-30380 OneDev vulnerable to arbitrary file reading for unauthenticated user CVSS 4.0HIGH 8.7
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences