TI-2021-04346 Aliases CVE-2021-21243

Pre-Auth Unsafe Deserialization on KubernetesResource

HIGH 75CWE-74Published 2021-01-15 · Updated 2024-08-03

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, a Kubernetes REST endpoint exposes two methods that deserialize untrusted data from the request body. These endpoints do not enforce any authentication or authorization checks. This issue may lead to pre-auth RCE. This issue was fixed in 4.0.3 by not using deserialization at KubernetesResource side.

Why it matters now

EPSS 0.54494 99th 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

Vendor	Product	Affected versions	Fixed in	Status	Source
theonedev	onedev	before 4.0.3	4.0.3	Patch available	CNA

onedev Vendortheonedev Affected before 4.0.3 Fixed in 4.0.3 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:onedev_project:onedev::::::::	before 4.0.3	Vulnerable	theonedev

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

2026-10-02 Threatist record created from CVE-2021-21243
2026-10-14 EPSS moved to the 99th percentile and above

References

Patch 1

https://github.com/theonedev/onedev/commit/9637fc8fa461c5777282a0021c3deb1e7a48f137

Advisory 1

https://github.com/theonedev/onedev/security/advisories/GHSA-9mmq-fm8c-q4fv

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-2022-18587 Git Repository Disclosure in Onedev CVSS 3.1HIGH 7.5
TI-2021-04349 Pre-Auth Access token leak CVSS 3.1HIGH 8.6
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