CVE-2021-21244

Name: CVE-2021-21244
Creator: NVD / NIST
Published: 2021-01-15T20:15:12.097+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.49%

Last modified Jun 17, 2026

CVE-2021-21244 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, There is a vulnerability that enabled pre-auth server side template injection via Bean validation message tampering. EPSS estimates a 1.49% chance of exploitation in the next 30 days.

Description

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, There is a vulnerability that enabled pre-auth server side template injection via Bean validation message tampering. Full details in the reference GHSA. This issue was fixed in 4.0.3 by disabling validation interpolation completely.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.49%

70.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Onedev Project	Onedev	< 4.0.3

References

https://github.com/theonedev/onedev/commit/4f5dc6fb9e50f2c41c4929b0d8c5824b2cca3d65Patch, Third Party Advisory
https://github.com/theonedev/onedev/security/advisories/GHSA-vm26-xg39-cfj4Third Party Advisory
https://github.com/theonedev/onedev/commit/4f5dc6fb9e50f2c41c4929b0d8c5824b2cca3d65Patch, Third Party Advisory
https://github.com/theonedev/onedev/security/advisories/GHSA-vm26-xg39-cfj4Third Party Advisory

Timeline

Published: Jan 15, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21244?

How severe is CVE-2021-21244?

CVE-2021-21244 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.49% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21244?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-21244?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST