Vulnerability in Nodejs Node

CVE-2021-44531

Accepting arbitrary Subject Alternative Name (SAN) types, unless a PKI is specifically defined to use a particular SAN type, can result in bypassing name-constrained intermediates. Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 was accepting URI SAN types, which PKIs are often not defined to use. Additionally, when a protocol allows URI SANs, Node.js did not match the URI correctly.Versions of Node.js with the fix for this disable the URI SAN type when checking a certificate against a hostname. This behavior can be reverted through the --security-revert command-line option.

Vulnerability class: Improper Certificate Validation

EPSS: 0.084 (94.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-44531?
CVE-2021-44531 is a high-severity vulnerability in Nodejs Node, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2022-02-24.
How severe is CVE-2021-44531?
High severity. CVSS v3 base score is 7.4 out of 10.
Is CVE-2021-44531 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.