TI-2021-10155 Aliases CVE-2021-29442 GHSA-xv5h-v7jh-p2qh

Authentication bypass in Alibaba nacos

HIGH 73CWE-306Published 2021-04-27 · Updated 2024-08-03

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 and GitHub. Impact type from CWE-306.

Summary

Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, the ConfigOpsController lets the user perform management operations like querying the database or even wiping it out. While the /data/remove endpoint is properly protected with the @Secured annotation, the /derby endpoint is not protected and can be openly accessed by unauthenticated users. These endpoints are only valid when using embedded storage (derby DB) so this issue should not affect those installations using external storage (e.g. mysql)

Why it matters now

EPSS 0.64205 99th percentileScored 2026-11-07

Public exploit Yes 2 exploit referencesTagged by NVD

Fix Fixed nacos (alibaba): 1.4.1com.alibaba.nacos:nacos-common (Maven): 1.4.1

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
Alibaba	nacos	before 1.4.1	1.4.1	Patch available	CNA
—	com.alibaba.nacos:nacos-common (Maven)	before 1.4.1	1.4.1	Patch available	GHSA-xv5h-v7jh-p2qh

nacos VendorAlibaba Affected before 1.4.1 Fixed in 1.4.1 Patch available CNA
com.alibaba.nacos:nacos-common (Maven) Vendor— Affected before 1.4.1 Fixed in 1.4.1 Patch available GHSA-xv5h-v7jh-p2qh

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:alibaba:nacos::::::::	before 1.4.1	Vulnerable	Alibaba

cpe:2.3:a:alibaba:nacos:*:*:*:*:*:*:*:* Versions before 1.4.1 Vulnerable ·Alibaba

Remediation

Fix · CNA nacos (alibaba) Fixed in 1.4.1
Fix · GHSA-xv5h-v7jh-p2qh com.alibaba.nacos:nacos-common (Maven) Fixed in 1.4.1 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2021-29442
2026-10-03 Alias added: GHSA-xv5h-v7jh-p2qh

References

Exploit 2

Patch 1

https://github.com/alibaba/nacos/pull/4517

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2021-29442

TI-2021-10154 Authentication bypass in Alibaba nacos CVSS 3.1CRITICAL 9.8
TI-2021-19162 An Access Control vulnerability exists in Nacos 2.0.3 in the access prompt page; enter… CVSS 3.1HIGH 8.8
TI-2021-20198 A Cross Site Scripting (XSS) vulnerability exists in Nacos 2.0.3 in auth/users via the… CVSS 3.1MEDIUM 6.1
TI-2020-13672 Nacos 1.1.4 is affected by: Incorrect Access Control. CVSS 3.1MEDIUM 5.3

Sources

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