Node.js up to 20.20.1/22.22.1/24.14.0/25.8.1 HMAC Verification crypto_hmac.cc memcmp comparison

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.6$0-$5k0.48

Summaryinfo

A vulnerability, which was classified as problematic, was found in Node.js up to 20.20.1/22.22.1/24.14.0/25.8.1. Affected by this issue is the function memcmp of the file crypto_hmac.cc of the component HMAC Verification. Such manipulation leads to comparison. This vulnerability is documented as CVE-2026-21713. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Node.js up to 20.20.1/22.22.1/24.14.0/25.8.1 and classified as problematic. Affected by this issue is the function memcmp of the file crypto_hmac.cc of the component HMAC Verification. The manipulation with an unknown input leads to a comparison vulnerability. Using CWE to declare the problem leads to CWE-697. The product compares two entities in a security-relevant context, but the comparison is incorrect, which may lead to resultant weaknesses. Impacted is integrity.

The advisory is available at nodejs.org. This vulnerability is handled as CVE-2026-21713. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 304242 (Debian dsa-6183 : libnode-dev - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 20.20.2, 22.22.2, 24.14.1 or 25.8.2 eliminates this vulnerability. The upgrade is hosted for download at nodejs.org.

The vulnerability is also documented in the vulnerability database at Tenable (304242). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Comparison
CWE: CWE-697
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 304242
Nessus Name: Debian dsa-6183 : libnode-dev - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Node.js 20.20.2/22.22.2/24.14.1/25.8.2

Timelineinfo

03/30/2026 Advisory disclosed
03/30/2026 +0 days VulDB entry created
03/30/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: nodejs.org
Status: Confirmed

CVE: CVE-2026-21713 (🔒)
GCVE (CVE): GCVE-0-2026-21713
GCVE (VulDB): GCVE-100-354146

Entryinfo

Created: 03/30/2026 07:41
Updated: 03/30/2026 12:37
Changes: 03/30/2026 07:41 (54), 03/30/2026 12:37 (2)
Complete: 🔍
Cache ID: 216:CC9:103

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