7.4

CVE-2021-44531: nodejs node Improper Certificate Validation

Modified
AliasesALPINE-CVE-2021-44531UBUNTU-CVE-2021-44531DEBIAN-CVE-2021-44531
Published 24-02-2022Last modified 30-04-2025

Vulnerability summary

CVE-2021-44531 is a high (CVSS 7.4) Improper Certificate Validation vulnerability in nodejs node. EPSS estimates a 8.37% chance of exploitation in the next 30 days, higher than 94.9% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.4 (NVD); no exploitation reported by the 5 checked sources; EPSS 8% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.4/10
010
High · v3.1 (NVD)
EPSS score
8.37%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 19 · Related 8
DSA-5170-1MGASA-2022-0077OPENSUSE-SU-2022:0112-1OPENSUSE-SU-2022:0113-1OPENSUSE-SU-2024:11730-1OPENSUSE-SU-2024:11746-1

Timeline

  1. 24-02-2022
    PublishedVulnerability first disclosed.
  2. 30-04-2025
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

8.37%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

No change 0.00 pp

From 8.37% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Oracle7 products
Alpine3 products
  • nodejs< 12.22.10-r0 | < 14.19.0-r0 | < 16.13.2-r0
  • nodejs-current< 17.3.1-r0
  • openjdk11< 11.0.15_p10-r0
Nodejs2 products
  • node≥ 4.0, < 4.* | ≥ 5.0, < 5.* | ≥ 6.0, < 6.* | ≥ 7.0, < 7.* | ≥ 8.0, < 8.* | ≥ 9.0, < 9.* | ≥ 10.0, < 10.* | ≥ 11.0, < 11.* | ≥ 12.0, < 12.22.9 | ≥ 13.0, < 13.* | ≥ 14.0, < 14.18.3 | ≥ 15.0, < 15.* | ≥ 16.0, < 16.13.2 | ≥ 17.0, < 17.3.1
  • node.js< 12.22.9 | ≥ 14.0.0, < 14.18.3 | ≥ 16.0.0, < 16.13.2 | ≥ 17.0.0, < 17.3.1
Debian1 product
  • nodejs< 12.22.9~dfsg-1
Ubuntu1 product
  • nodejs< 12.22.9~dfsg-1ubuntu3.6 | < 18.19.1+dfsg-6ubuntu5 | < 20.18.1+dfsg-1ubuntu2

5 vendors · 14 products

References

12 links
Show all 12 references