CVE-2021-44532

Exp

Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 converts SANs (Subject Alternative Names) to a string format. It uses this string to check peer certificates against hostnames when validating connections. The string format was subject to an injection vulnerability when name constraints were used within a certificate chain, allowing the bypass of these name constraints.Versions of Node.js with the fix for this escape SANs containing the problematic characters in order to prevent the injection. This behavior can be reverted through the --security-revert command-line option.

Published: 2022-02-24 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-44532 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.12%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2021-44532

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2021-44532

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 2025-11-21 0.70% 0.12% -0.58%
2 2025-11-18 0.13% 0.70% +0.56%
3 2025-04-16 — 0.13% —

Full EPSS history (24 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-44532

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2021-44532

OS Trackers for CVE-2021-44532

vendor priority summary link
alpine medium CVE-2021-44532: 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-2021-44532
debian not yet assigned CVE-2021-44532 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-2021-44532
gentoo low CVE-2021-44532: 1 GLSA(s) (202405-29), 1 atom(s) (net-libs/nodejs); latest impact low. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2021-44532
redhat medium — https://access.redhat.com/security/cve/CVE-2021-44532
suse medium CVE-2021-44532 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, …), 112 product×package rows across 21 product lines (Container bci/nodejs, SUSE Enterprise Storage 7, … (21 product lines)): Fixed 77, Known Not Affected 35. https://www.suse.com/security/cve/CVE-2021-44532/
ubuntu medium CVE-2021-44532 medium priority: Ubuntu including 1 source packages (nodejs), 15 status rows across 15 suites (bionic, focal, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 8, ignored 5, needed 1, released 1. https://ubuntu.com/security/CVE-2021-44532

Affected software / configurations for CVE-2021-44532

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_cluster <= 8.0.29 cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:*
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 >= 8.0.0, <= 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:*:*:*:*:*:*:*
debian debian_linux 11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References for CVE-2021-44532

cvelogic Threat Intelligence