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CVE-2021-25947

Prototype pollution in nestie

9.8 CriticalFix available

Prototype pollution vulnerability in 'nestie' versions 0.0.0 through 1.0.0 allows an attacker to cause a denial of service and may lead to remote code execution.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.96%Up 1.8 points since Jun 4, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

Prototype pollution vulnerability in 'nestie' versions 0.0.0 through 1.0.0 allows an attacker to cause a denial of service and may lead to remote code execution.

Record
CVE-2021-25947
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-1321
Updated
2026-11-02
CVE List No score

Prototype pollution vulnerability in 'nestie' versions 0.0.0 through 1.0.0 allows an attacker to cause a denial of service and may lead to remote code execution.

Record
CVE-2021-25947
Updated
2026-11-02
EUVDEUVD-2021-1356 No score

Prototype pollution vulnerability in 'nestie' versions 0.0.0 through 1.0.0 allows an attacker to cause a denial of service and may lead to remote code execution.

Record
EUVD-2021-1356
Updated
2026-11-03
GitHub AdvisoriesGHSA-m7rg-8wvq-846v 9.8

Prototype pollution in nestie

Prototype pollution vulnerability in 'nestie' versions 0.0.0 through 1.0.0 allows an attacker to cause a denial of service and may lead to remote code execution.

Record
GHSA-m7rg-8wvq-846v
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-913, CWE-1321
Updated
2026-11-02
OSVGHSA-m7rg-8wvq-846v 9.8

Prototype pollution in nestie

Prototype pollution vulnerability in 'nestie' versions 0.0.0 through 1.0.0 allows an attacker to cause a denial of service and may lead to remote code execution.

Record
GHSA-m7rg-8wvq-846v
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-1321, CWE-913
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
nestie
npm
before 1.0.1
1.0.1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-25947 is a critical vulnerability (CVSS 9.8) in Nestie Project Nestie, published June 3, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.96%, the 87th percentile. Fixed in nestie 1.0.1.

References

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