HOME VULNERABILITIESCVE-2021-21304

CRITICAL

CVE-2021-21304

CWE-915Published: February 8, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Dynamoose is an open-source modeling tool for Amazon's DynamoDB. In Dynamoose from version 2.0.0 and before version 2.7.0 there was a prototype pollution vulnerability in the internal utility method "lib/utils/object/set.ts". This method is used throughout the codebase for various operations throughout Dynamoose. We have not seen any evidence of this vulnerability being exploited. There is no evidence this vulnerability impacts versions 1.x.x since the vulnerable method was added as part of the v2 rewrite. This vulnerability also impacts v2.x.x beta/alpha versions. Version 2.7.0 includes a patch for this vulnerability.

Technical Analysis

CVE-2021-21304 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

dynamoosejs1 product(s)

dynamoose

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/dynamoose/dynamoose/commit/324c62b4709204955931a187362f8999805b1d8e

PATCHhttps://github.com/dynamoose/dynamoose/security/advisories/GHSA-rrqm-p222-8ph2

PATCHhttps://github.com/dynamoose/dynamoose/commit/324c62b4709204955931a187362f8999805b1d8e

PATCHhttps://github.com/dynamoose/dynamoose/security/advisories/GHSA-rrqm-p222-8ph2

ADVISORYhttps://github.com/dynamoose/dynamoose/releases/tag/v2.7.0

ADVISORYhttps://www.npmjs.com/package/dynamoose

ADVISORYhttps://github.com/dynamoose/dynamoose/releases/tag/v2.7.0

ADVISORYhttps://www.npmjs.com/package/dynamoose

All References (8)

→

https://github.com/dynamoose/dynamoose/commit/324c62b4709204955931a187362f8999805b1d8ePatch · Third Party Advisory

→

https://github.com/dynamoose/dynamoose/releases/tag/v2.7.0Release Notes · Third Party Advisory

→

https://github.com/dynamoose/dynamoose/security/advisories/GHSA-rrqm-p222-8ph2Patch · Third Party Advisory

→

https://www.npmjs.com/package/dynamooseProduct · Third Party Advisory

→

https://github.com/dynamoose/dynamoose/commit/324c62b4709204955931a187362f8999805b1d8ePatch · Third Party Advisory

→

https://github.com/dynamoose/dynamoose/releases/tag/v2.7.0Release Notes · Third Party Advisory

→

https://github.com/dynamoose/dynamoose/security/advisories/GHSA-rrqm-p222-8ph2Patch · Third Party Advisory

→

https://www.npmjs.com/package/dynamooseProduct · Third Party Advisory

Quick Facts

CVE IDCVE-2021-21304

CVSS Score9.8 / 10

SeverityCRITICAL

WeaknessCWE-915

CISA KEVNo

Affected1 vendor(s)

PublishedFeb 8, 2021

Related CVEs (CWE-915)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2021-21304 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.

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