What’s Vulnerable › Vulnerabilities

CVE-2021-21244: Pre-Auth SSTI via Bean validation message tampering

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-01-15 · updated 2026-06-17
• Weakness: CWE-74

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.

Affected products

• theonedev onedev: before 4.0.3 — fixed in 4.0.3

How to fix

Upgrade to a fixed version: theonedev onedev 4.0.3. Check the vendor advisory for mitigations.

References

• https://github.com/theonedev/onedev/commit/4f5dc6fb9e50f2c41c4929b0d8c5824b2cca3d65
• https://github.com/theonedev/onedev/security/advisories/GHSA-vm26-xg39-cfj4
• https://github.com/theonedev/onedev/commit/4f5dc6fb9e50f2c41c4929b0d8c5824b2cca3d65
• https://github.com/theonedev/onedev/security/advisories/GHSA-vm26-xg39-cfj4

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