HOMEVULNERABILITIESCVE-2021-21244
CRITICAL

CVE-2021-21244

CWE-74Published: January 15, 2021· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2021-21244 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

onedev_project1 product(s)
onedev
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

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

All References (4)

→
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

Quick Facts

CVE IDCVE-2021-21244
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-74
CISA KEVNo
Affected1 vendor(s)
PublishedJan 15, 2021

Related CVEs (CWE-74)

CVE-2023-32314
10.0
CVE-2026-56699
10.0
CVE-2023-30547
10.0
CVE-2020-26282
10.0
CVE-2026-44182
10.0
CVE-2022-24760
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-21244 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2021-21244·NVD