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No exploitation reportedFix available

CVE-2021-23329

No exploitation reported by the sources we read.

  • Published2021-01-31
  • Fixed in1.0.4
  • WeaknessCWE-1321

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The package nested-object-assign before 1.0.4 are vulnerable to Prototype Pollution via the default function, as demonstrated by running the PoC below.

Timeline

dates in UTC
  1. 2021-01-3116:15CVE publishedNVD

Versions per branch

NVD · OSV
Getadigital nested-object-assign
BranchAffectedFixed in
1.0< 1.0.41.0.4

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • @rootio/nested-object-assignRoot:npmall versions · fixed in 1.0.3-root.io.1
  • nested-object-assignRoot:npmall versions · fixed in 1.0.3-aikido.1

Full record on NVD

Fix

  1. Update Getadigital nested-object-assign to 1.0.4

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.17.5known since 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • NVDweakness (CWE)CWE-1321read 2026-10-23
  • FIRST EPSSEPSS score1.5 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryHIGH2021-02-01

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2021-01-31
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-c497-v8pv-ch6x

Frequently asked questions

What is CVE-2021-23329?

The package nested-object-assign before 1.0.4 are vulnerable to Prototype Pollution via the default function, as demonstrated by running the PoC below.

Is CVE-2021-23329 actively exploited?

Active exploitation of CVE-2021-23329 has not been confirmed. Its EPSS score was 1.5% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-23329?

CVE-2021-23329 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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