Skip to content
Fencer Vulns
high 7.5

CVE-2021-3749 json

Inefficient Regular Expression Complexity in axios/axios

published 2021-08-31 5 y ago modified 2026-09-10 1 mo ago also GHSA-cph5-m8f7-6c5x , EUVD-2021-2040

cvss
7.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
8.5%
EPSS 8.5% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

axios is vulnerable to Inefficient Regular Expression Complexity

Patch / fix

  • npm axios 0.21.2
  • siemens sinec_ins 1.0
  • oracle goldengate 21.7.0.0.0
  • node-axios Debian 14, Debian 13, Debian 12 0.21.3+dfsg-1

debian advisories DEBIAN-CVE-2021-3749

  • kiali service mesh 2.0 v1.24.7.redhat1-1.el8
  • servicemesh service mesh 2.0 2.0.9-3.el8
  • servicemesh-mixc service mesh 2.0 2.0.9-3.el8
  • servicemesh-mixs service mesh 2.0 2.0.9-3.el8
  • servicemesh-proxy service mesh 2.0 2.0.9-3.el8
  • servicemesh-istioctl service mesh 2.0 2.0.9-3.el8
  • servicemesh-prometheus service mesh 2.0 2.14.0-16.el8.1
  • servicemesh-pilot-agent service mesh 2.0 2.0.9-3.el8

red hat advisories RHSA-2022:1276

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-2021-3749 updated cvss 7.5

nodejs-axios: Regular expression denial of service in trim function

  • Red Hat OpenShift Service Mesh 1 kiali, servicemesh-grafana, servicemesh-grafana-prometheus
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Service Mesh 2.0 servicemesh-grafana, servicemesh-grafana-prometheus
    affected: no fix available
  • Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/console-rhel8, rhacm2/search-ui-rhel8, rhacm2/console-ui-rhel8, rhacm2/application-ui-rhel8, rhacm2/console-header-rhel8, rhacm2/kui-web-terminal-rhel8
    affected: no fix available “Fix deferred”
  • Red Hat Decision Manager 7 nodejs-axios nodejs-axios
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Container Platform 4 openshift4/ose-grafana
    affected: no fix available “Fix deferred”
  • Red Hat Process Automation 7 nodejs-axios nodejs-axios
    affected: no fix planned “Out of support scope”
  • Red Hat Service Telemetry Framework 1.2 for RHEL 8 stf/smart-gateway-rhel8-operator, stf/service-telemetry-rhel8-operator
    affected: no fix planned “Will not fix”
  • Red Hat Migration Toolkit for Virtualization 2.2 migration-toolkit-virtualization/mtv-ui-rhel8 2.2.0-60
    fixed: vendor fix RHEA-2021:5066
show 5 more
  • Red Hat OpenShift Service Mesh 2.0 kiali v1.24.7.redhat1-1.el8
    fixed: vendor fix RHSA-2022:1276
  • Red Hat Migration Toolkit 1.6 rhmtc/openshift-migration-ui-rhel8 v1.6.0-24
    fixed: vendor fix RHSA-2021:3694
  • Red Hat OpenShift Container Platform 4.10 openshift4/ose-console v4.10.0-202202240423.p0.gb6503ff.assembly.stream
    fixed: vendor fix RHSA-2022:0056
  • Red Hat RHACS 3.67 for RHEL 8 advanced-cluster-security/rhacs-rhel8-operator 3.67.0-3
    fixed: vendor fix RHSA-2021:4902
  • Red Hat Migration Toolkit for Virtualization 2.2 migration-toolkit-virtualization/mtv-rhel8-operator 2.2.0-59, migration-toolkit-virtualization/mtv-virt-v2v-rhel8 2.2.0-18, migration-toolkit-virtualization/mtv-controller-rhel8 2.2.0-39, migration-toolkit-virtualization/mtv-operator-bundle 2.2.0-104, migration-toolkit-virtualization/mtv-validation-rhel8 2.2.0-36, migration-toolkit-virtualization/mtv-must-gather-rhel8 2.2.0-57, +1 more Red Hat OpenShift Service Mesh 2.0 servicemesh 2.0.9-3.el8, servicemesh-cni 2.0.9-3.el8, servicemesh-mixc 2.0.9-3.el8, servicemesh-mixs 2.0.9-3.el8, servicemesh-proxy 2.0.9-3.el8, servicemesh-istioctl 2.0.9-3.el8, +4 more Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/grc-ui-rhel8 Red Hat Migration Toolkit 1.6 rhmtc/openshift-velero-plugin-rhel8 v1.6.0-7, rhmtc/openshift-migration-velero-rhel8 v1.6.0-9, rhmtc/openshift-migration-registry-rhel8 v1.6.0-5, rhmtc/openshift-migration-rhel8-operator v1.6.0-31, rhmtc/openshift-migration-log-reader-rhel8 v1.6.0-4, rhmtc/openshift-migration-operator-bundle v1.6.0-37, +7 more Red Hat OpenShift Container Platform 4.10 openshift4/ose-cli v4.10.0-202202160843.p0.gf93da17.assembly.stream, openshift4/ose-pod v4.10.0-202202251728.p0.ge419edf.assembly.stream, openshift4/ose-etcd v4.10.0-202202160023.p0.g7bbf25a.assembly.stream, openshift4/ose-tests v4.10.0-202202221318.p0.gc1d9068.assembly.stream, openshift4/ose-coredns v4.10.0-202202160023.p0.g3ec1ee7.assembly.stream, openshift4/ose-grafana v4.10.0-202202160023.p0.g48aec35.assembly.stream, +159 more Red Hat RHACS 3.67 for RHEL 8 advanced-cluster-security/rhacs-operator-bundle 3.67.0-2
    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-24-277-02 updated cvss 7.5

Subnet Solutions Inc. PowerSYSTEM Center

  • Subnet Solutions Inc. PowerSYSTEM Center <=PSC_2020_v5.21.x
    affected: vendor fix, mitigation “For all vulnerabilities, users can disable usage of previous UI extensions.” subnet.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

8.52% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/1e8f07fc-c384-4ff9-8498-0690de2e8c31 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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
GitHub 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
npm axios
<0.21.2
0.21.2

Affected products

  • axios axios/axios

Classification

Weakness
  • CWE-1333 Inefficient Regular Expression Complexity
  • CWE-400 Uncontrolled Resource Consumption

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.