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Vulnerability record · CVE-2021-44533 · published 24 February 2022

CVE-2021-44533: Nodejs node.js improper certificate validation vulnerability

Nodejs · Node.Js

Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 did not handle multi-value Relative Distinguished Names correctly. Attackers could craft certificate subjects containing a single-value Relative Distinguished Name that would be interpreted as a multi-value Relative Distinguished Name, for example, in order to inject a Common Name that would allow bypassing the certificate subject verification.Affected versions of Node.js that do not accept multi-value Relative Distinguished Names and are thus not vulnerable to such attacks themselves. However, third-party code that uses node's ambiguous presentation of certificate subjects may be vulnerable.

5.3 CVSS 3.1 Medium EPSS 9.4% · top 4.8% CWE-295 · Improper certificate validation
5.3CVSS 3.1 base score, v2 5.0
9.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
12References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 did not handle multi-value Relative Distinguished Names correctly. Attackers could craft certificate subjects containing a single-value Relative Distinguished Name that would be interpreted as a multi-value Relative Distinguished Name, for example, in order to inject a Common Name that would allow bypassing the certificate subject verification.Affected versions of Node.js that do not accept multi-value Relative Distinguished Names and are thus not vulnerable to such attacks themselves. However, third-party code that uses node's ambiguous presentation of certificate subjects may be vulnerable.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

9 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://hackerone.com/reports/1429694 ExploitMitigationThird Party Advisory
https://nodejs.org/en/blog/vulnerability/jan-2022-security-releases/ Release NotesVendor Advisory
https://security.netapp.com/advisory/ntap-20220325-0007/ Third Party Advisory
https://www.debian.org/security/2022/dsa-5170 Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html PatchThird Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html Third Party Advisory
https://hackerone.com/reports/1429694 ExploitMitigationThird Party Advisory
https://nodejs.org/en/blog/vulnerability/jan-2022-security-releases/ Release NotesVendor Advisory
https://security.netapp.com/advisory/ntap-20220325-0007/ Third Party Advisory
https://www.debian.org/security/2022/dsa-5170 Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html PatchThird Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2021-44533), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.