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Fencer Vulns
high 7.5

CVE-2021-22883 in the critical feed json

Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an…

published 2021-03-03 5 y ago modified 2026-10-16 23 d ago also BIT-node-2021-22883 , BIT-node-min-2021-22883 , EUVD-2021-10016

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
77.4%
EPSS 77.4% chance of exploitation in 30 days, percentile 99.5%
public exploits
0
none known

Summary

Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an 'unknownProtocol' are established. This leads to a leak of file descriptors. If a file descriptor limit is configured on the system, then the server is unable to accept new connections and prevent the process also from opening, e.g. a file. If no file descriptor limit is configured, then this lead to an excessive memory usage and cause the system to run out of memory.

Patch / fix

  • bitnami node 10.24.0, 12.21.0, 14.16.0, 15.10.0
  • bitnami node-min 10.24.0, 12.21.0, 14.16.0, 15.10.0
  • NodeJS Node 10.24.0, 12.21.0, 14.16.0, 15.10.0
  • nodejs Debian 14, Debian 13, Debian 12 12.21.0~dfsg-1

debian advisories DEBIAN-CVE-2021-22883

  • nodejs Ubuntu 20.04 LTS 10.19.0~dfsg-3ubuntu1.2

ubuntu advisories UBUNTU-CVE-2021-22883

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • npm RHEL 8 1:6.14.11-1.12.21.0.1.module+el8.3.0+10191+34fb5a07
  • nodejs RHEL 8 1:12.21.0-1.module+el8.3.0+10191+34fb5a07
  • nodejs-nodemon RHEL 8 2.0.3-1.module+el8.3.0+9715+1718613f
  • nodejs-full-i18n RHEL 8 1:12.21.0-1.module+el8.3.0+10191+34fb5a07
  • nodejs-packaging RHEL 8, RHEL 8.2 EUS, RHEL 8.1 EUS 17-3.module+el8.1.0+3369+37ae6a45
  • npm RHEL 8 1:6.14.11-1.10.24.0.1.module+el8.3.0+10166+b07ac28e
  • nodejs RHEL 8 1:10.24.0-1.module+el8.3.0+10166+b07ac28e
  • nodejs-nodemon RHEL 8, RHEL 8.2 EUS, RHEL 8.1 EUS 1.18.3-1.module+el8+2632+6c5111ed

red hat advisories RHSA-2021:0734RHSA-2021:0735RHSA-2021:0827RHSA-2021:0831RHSA-2021:0739RHSA-2021:0830

  • nodejs10 SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +11 more 10.24.0-1.33.2
  • nodejs10 SLE Module for Web and Scripting 12 10.24.0-1.36.2
  • nodejs12 SLE Module for Web and Scripting 15 SP2 12.21.0-4.13.2
  • nodejs14 SLE Module for Web and Scripting 12 14.16.0-6.9.2
  • nodejs12 SLE Module for Web and Scripting 12 12.21.0-1.29.2
  • nodejs14 SLE Module for Web and Scripting 15 SP2 14.16.0-5.9.1

suse advisories SUSE-SU-2021:0674-1SUSE-SU-2021:0673-1SUSE-SU-2021:0651-1SUSE-SU-2021:0650-1SUSE-SU-2021:0649-1SUSE-SU-2021:0648-1

  • nodejs14 openSUSE Tumbleweed 14.17.5-1.2
  • nodejs10 openSUSE Leap 15.2 10.24.0-lp152.2.12.1
  • nodejs12 openSUSE Leap 15.2 12.21.0-lp152.3.12.1
  • nodejs14 openSUSE Leap 15.2 14.16.0-lp152.8.1

opensuse advisories openSUSE-SU-2024:11096-1openSUSE-SU-2021:0372-1openSUSE-SU-2021:0357-1openSUSE-SU-2021:0356-1

  • nodejs-nodemon AlmaLinux 8 2.0.3-1.module_el8.4.0+2521+c668cc9f
  • nodejs-packaging AlmaLinux 8 23-3.module_el8.5.0+254+b4526b16
  • nodejs-packaging AlmaLinux 8 23-3.module_el8.4.0+2522+3bd42762
  • npm AlmaLinux 8 1:6.14.11-1.10.24.0.1.module_el8.5.0+81+7dbe79d3
  • npm AlmaLinux 8 1:6.14.11-1.10.24.0.1.module_el8.3.0+2047+b07ac28e
  • npm AlmaLinux 8 1:6.14.11-1.10.24.0.1.module_el8.4.0+2224+b07ac28e
  • nodejs AlmaLinux 8 1:10.24.0-1.module_el8.5.0+81+7dbe79d3
  • nodejs AlmaLinux 8 1:10.24.0-1.module_el8.3.0+2047+b07ac28e

almalinux advisories ALSA-2021:0744ALSA-2021:0735ALSA-2021:0734

  • nodejs Rocky Linux 8 1:14.16.0-2.module+el8.3.0+100+234774f7
  • nodejs-nodemon Rocky Linux 8 2.0.3-1.module+el8.6.0+982+9fdca2d4
  • nodejs-nodemon Rocky Linux 8 2.0.3-1.module+el8.3.0+100+234774f7
  • nodejs-nodemon Rocky Linux 8 2.0.3-1.module+el8.4.0+638+5344c6f7
  • nodejs-packaging Rocky Linux 8 23-3.module+el8.7.0+1071+4bdda2a8
  • nodejs-packaging Rocky Linux 8 23-3.module+el8.3.0+100+234774f7
  • nodejs-packaging Rocky Linux 8 23-3.module+el8.5.0+733+de4fee6c
  • nodejs Rocky Linux 8 1:10.24.0-1.module+el8.3.0+101+f84c7154

rocky linux advisories RLSA-2021:0744RLSA-2021:0735RLSA-2021:0734

  • nodejs Alpine 3.12, Alpine 3.11 12.21.0-r0
  • nodejs Alpine 3.24, Alpine 3.23, Alpine 3.22 +9 more 14.16.0-r0
  • nodejs-current Alpine 3.24, Alpine 3.23, Alpine 3.22 +9 more 15.10.0-r0

alpine advisories ALPINE-CVE-2021-22883

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • nodejs Arch Linux 15.10.0-1

arch linux advisories AVG-1604

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-22883 updated cvss 7.5

nodejs: HTTP2 'unknownProtocol' cause DoS by resource exhaustion

  • Red Hat Quay 3 quay/quay-rhel8
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 8) nodejs 10.24.0-1.module+el8.3.0+10166+b07ac28e, nodejs 12.21.0-1.module+el8.3.0+10191+34fb5a07, nodejs 14.16.0-2.module+el8.3.0+10180+b92e1eb6, nodejs-packaging 17-3.module+el8+2873+aa7dfd9a, nodejs-nodemon 1.18.3-1.module+el8+2632+6c5111ed, nodejs-packaging 17-3.module+el8.1.0+3369+37ae6a45, +9 more
    fixed: vendor fix RHSA-2021:0735
  • Red Hat Enterprise Linux AppStream EUS (v. 8.1) nodejs 10.24.0-1.module+el8.1.0+10161+5cffdac6, nodejs 12.21.0-1.module+el8.1.0+10194+d5e49c90, nodejs-packaging 17-3.module+el8+2873+aa7dfd9a, nodejs-nodemon 1.18.3-1.module+el8+2632+6c5111ed, nodejs-packaging 17-3.module+el8.1.0+3369+37ae6a45, nodejs-nodemon 1.18.3-1.module+el8.1.0+3369+37ae6a45, +4 more
    fixed: vendor fix RHSA-2021:0741
  • Red Hat Enterprise Linux AppStream EUS (v. 8.2) nodejs 10.24.0-1.module+el8.2.0+10165+019e8570, nodejs 12.21.0-1.module+el8.2.0+10192+8959c43b, nodejs-packaging 17-3.module+el8+2873+aa7dfd9a, nodejs-nodemon 1.18.3-1.module+el8+2632+6c5111ed, nodejs-packaging 17-3.module+el8.1.0+3369+37ae6a45, nodejs-nodemon 1.18.3-1.module+el8.1.0+3369+37ae6a45, +4 more
    fixed: vendor fix RHSA-2021:0738
  • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-nodejs10-nodejs 10.24.0-1.el7, rh-nodejs12-nodejs 12.21.0-1.el7, rh-nodejs14-nodejs 14.16.0-1.el7, rh-nodejs10-npm 6.14.11-10.24.0.1.el7, rh-nodejs12-npm 6.14.11-12.21.0.1.el7, rh-nodejs14-npm 6.14.11-14.16.0.1.el7 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-nodejs10-nodejs 10.24.0-1.el7, rh-nodejs12-nodejs 12.21.0-1.el7, rh-nodejs14-nodejs 14.16.0-1.el7, rh-nodejs10-npm 6.14.11-10.24.0.1.el7, rh-nodejs12-npm 6.14.11-12.21.0.1.el7, rh-nodejs14-npm 6.14.11-14.16.0.1.el7 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-nodejs10-nodejs 10.24.0-1.el7, rh-nodejs12-nodejs 12.21.0-1.el7, rh-nodejs14-nodejs 14.16.0-1.el7, rh-nodejs10-npm 6.14.11-10.24.0.1.el7, rh-nodejs12-npm 6.14.11-12.21.0.1.el7, rh-nodejs14-npm 6.14.11-14.16.0.1.el7 Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-nodejs10-nodejs 10.24.0-1.el7, rh-nodejs12-nodejs 12.21.0-1.el7, rh-nodejs14-nodejs 14.16.0-1.el7, rh-nodejs10-npm 6.14.11-10.24.0.1.el7, rh-nodejs12-npm 6.14.11-12.21.0.1.el7, rh-nodejs14-npm 6.14.11-14.16.0.1.el7
    fixed: vendor fix RHSA-2021:0827
  • Red Hat Enterprise Linux 9 npm, nodejs, nodejs-libs, nodejs-full-i18n
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-22-090-02 updated cvss 7.5

Hitachi Energy e-mesh EMS

  • Hitachi Energy e-mesh EMS 1
    affected: mitigation “Hitachi Energy recommends users update to e-mesh: EMS 1.0.1 or later.” search.abb.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

77.39% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami node
>=10.0.0, <10.24.0
>=12.0.0, <12.21.0
>=14.0.0, <14.16.0
>=15.0.0, <15.10.0
10.24.0
12.21.0
14.16.0
15.10.0
bitnami node-min
>=10.0.0, <10.24.0
>=12.0.0, <12.21.0
>=14.0.0, <14.16.0
>=15.0.0, <15.10.0
10.24.0
12.21.0
14.16.0
15.10.0

Affected products

  • NodeJS Node

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-772 Missing Release of Resource after Effective Lifetime
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.