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.

Published: 2022-02-24 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-44531 is rated High Risk (67.6/100): CVSS High severity, with high exploitation likelihood (EPSS 8.37%, 94th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +8.30% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-44531

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.08% 8.37% +8.30%
2 2025-11-21 0.28% 0.08% -0.21%
3 2025-11-18 — 0.28% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-44531

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.4 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.2 5.2 [email protected]
5.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 4.9 [email protected]

Weakness enumeration for CVE-2021-44531

OS Trackers for CVE-2021-44531

vendor priority summary link
alpine high CVE-2021-44531: 3 source package rows (nodejs, nodejs-current, openjdk11); 127 state rows across 15 repos (3.12-main, 3.17-community, 3.17-main, 3.18-community, 3.18-main, 3.19-community, 3.19-main, 3.20-community, 3.20-main, 3.21-community, 3.21-main, 3.22-community, 3.22-main, edge-community, edge-main); fixed 22, open 105. https://security.alpinelinux.org/vuln/CVE-2021-44531
debian not yet assigned CVE-2021-44531 not yet assigned priority: Debian including 1 source packages (nodejs), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2021-44531
gentoo low CVE-2021-44531: 1 GLSA(s) (202405-29), 1 atom(s) (net-libs/nodejs); latest impact low. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2021-44531
redhat medium — https://access.redhat.com/security/cve/CVE-2021-44531
suse medium CVE-2021-44531 severity moderate: SUSE including 53 source package names (12-10.1:nodejs12-12.22.9-4.25.1, 12-10.1:npm12-12.22.9-4.25.1, …), 203 product×package rows across 32 product lines (Container bci/nodejs, SUSE CaaS Platform 4.0, … (32 product lines)): Known Not Affected 126, Fixed 77. https://www.suse.com/security/cve/CVE-2021-44531/
ubuntu medium CVE-2021-44531 medium priority: Ubuntu including 1 source packages (nodejs), 14 status rows across 14 suites (bionic, focal, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, trusty, upstream, xenial): not-affected 8, ignored 5, released 1. https://ubuntu.com/security/CVE-2021-44531

Affected software / configurations for CVE-2021-44531

Vendor Product Version Raw CPE
nodejs node.js < 12.22.9 cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
nodejs node.js >= 14.0.0, < 14.18.3 cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
nodejs node.js >= 16.0.0, < 16.13.2 cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
nodejs node.js >= 17.0.0, < 17.3.1 cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
oracle graalvm 20.3.5 cpe:2.3:a:oracle:graalvm:20.3.5:*:*:*:enterprise:*:*:*
oracle graalvm 21.3.1 cpe:2.3:a:oracle:graalvm:21.3.1:*:*:*:enterprise:*:*:*
oracle graalvm 22.0.0.2 cpe:2.3:a:oracle:graalvm:22.0.0.2:*:*:*:enterprise:*:*:*
oracle mysql_connectors <= 8.0.28 cpe:2.3:a:oracle:mysql_connectors:*:*:*:*:*:*:*:*
oracle mysql_enterprise_monitor <= 8.0.29 cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:*
oracle mysql_server <= 5.7.37 cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
oracle mysql_server >= 8.0.0, <= 8.0.28 cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
oracle mysql_workbench <= 8.0.28 cpe:2.3:a:oracle:mysql_workbench:*:*:*:*:*:*:*:*
oracle peoplesoft_enterprise_peopletools 8.58 cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*
oracle peoplesoft_enterprise_peopletools 8.59 cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.59:*:*:*:*:*:*:*
oracle mysql_cluster <= 8.0.29 cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:*

References for CVE-2021-44531

cvelogic Threat Intelligence