WaratekVRT Sign in

CVE-2021-44667 Nacos

Affected softwareNacos
Severity6.1 Medium CVSS 3.1 2 scores
Fixed in2.1.0-BETA, 1.4.5
WeaknessCross-site scripting (CWE-79)
Published11 Mar 2022
Updated17 Jun 2026

Description

A Cross Site Scripting (XSS) vulnerability exists in Nacos 2.0.3 in auth/users via the (1) pageSize and (2) pageNo parameters.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 4 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 0.83% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review automated Upstream data
  • Record active
Decided by An OSV.dev record of this CVE affecting a package published to Maven Central. When every such package is one business applications do not use (Minecraft mods and launchers, Fastjson) and no tracked product is named by CPE, it settles the CVE as Outside Waratek scope instead
Finding Every Maven package this CVE affects (com.alibaba.nacos:nacos-common) is on the excluded_maven_packages list in known-products.yaml, so it is not reviewed.

CVSS

6.1 MEDIUM v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 6.1 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N NVD Primary published
CVSS 2.0 4.3 none AV:N/AC:M/Au:N/C:N/I:P/A:N NVD Primary

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
com.alibaba.nacos:nacos-common 2.0.0-ALPHA.1 2.1.0-BETA unbounded
com.alibaba.nacos:nacos-common 0 1.4.5 unbounded

Products and versions

2 products, 3 version entries
SourceVendorProductSchemeAffected versions
nvd alibaba nacos generic 2.0.3
osv com.alibaba.nacos nacos-common generic < 1.4.5 · ≥ 2.0.0 and < 2.1.0

References

URLTags
https://github.com/alibaba/nacos/issues/7359 WEB
https://github.com/alibaba/nacos/pull/7364 WEB
https://github.com/alibaba/nacos/pull/8980 WEB
https://github.com/alibaba/nacos/commit/cd6d7e33b94f24814701f3faf8b632e5e85444c5 WEB
https://github.com/alibaba/nacos/commit/d062fcafad0acd01673d404319526415a4af372b WEB
https://github.com/alibaba/nacos PACKAGE

Timeline

Published2022-03-11By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.