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Fencer Vulns
high 7.4

CVE-2020-8203 json

Prototype Pollution in lodash

published 2020-07-15 6 y ago modified 2026-11-02 6 d ago also GHSA-p6mc-m468-83gw , EUVD-2020-0567

cvss
7.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.2%
EPSS 5.2% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

Prototype pollution attack when using _.zipObjectDeep in lodash before 4.17.20.

Patch / fix

  • npm lodash 4.17.19
  • npm lodash-es 4.17.20
  • rubygems lodash-rails 4.17.19
  • lodash lodash 4.17.20
  • oracle blockchain_platform 21.1.2
  • node-lodash Debian 14, Debian 13, Debian 12 4.17.19+dfsg-1

debian advisories DEBIAN-CVE-2020-8203

  • node-lodash Ubuntu Pro 18.04 LTS 4.17.4+dfsg-1ubuntu0.1~esm1
  • node-lodash Ubuntu Pro 20.04 LTS 4.17.15+dfsg-2ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2020-8203

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

  • ior service mesh 1.1 1.1.6-1.el8
  • kiali service mesh 1.1 v1.12.10.redhat2-1.el7
  • servicemesh service mesh 1.1 1.1.6-1.el8
  • servicemesh-cni service mesh 1.1 1.1.6-1.el8
  • servicemesh-mixc service mesh 1.1 1.1.6-1.el8
  • servicemesh-mixs service mesh 1.1 1.1.6-1.el8
  • servicemesh-galley service mesh 1.1 1.1.6-1.el8
  • servicemesh-citadel service mesh 1.1 1.1.6-1.el8

red hat advisories RHSA-2020:3369RHSA-2020:3807RHSA-2020:5611RHSA-2020:5179

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-2020-8203 updated cvss 7.4

nodejs-lodash: prototype pollution in zipObjectDeep function

  • Red Hat OpenShift Service Mesh 1 jaeger
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Container Platform 3.11 kibana, openshift3/grafana, openshift3/ose-console Red Hat OpenShift Container Platform 4 kibana, openshift4/ose-console, openshift4/ose-grafana, logging-kibana5-container, openshift4/ose-metering-hadoop, openshift4/ose-prometheus-rhel9
    affected: no fix available, no fix planned “Will not fix”
  • Red Hat Virtualization 4 ovirt-engine-api-explorer
    affected: no fix available
  • Red Hat OpenShift Service Mesh 1.1 ior 1.1.6-1.el8, servicemesh 1.1.6-1.el8, servicemesh-cni 1.1.6-1.el8, servicemesh-mixc 1.1.6-1.el8, servicemesh-mixs 1.1.6-1.el8, servicemesh-galley 1.1.6-1.el8, +9 more
    fixed: vendor fix RHSA-2020:3369
  • Red Hat Quay v3 quay/quay-rhel8 v3.6.0-62
    fixed: vendor fix RHSA-2021:3917
  • Red Hat OpenShift Container Platform 4.6 openshift4/ose-metering-presto v4.6.0-202010200139.p0
    fixed: vendor fix RHSA-2020:4298
  • Red Hat OpenShift Jaeger 1.17 distributed-tracing/jaeger-agent-rhel7 1.17.6-1, distributed-tracing/jaeger-query-rhel7 1.17.6-1, distributed-tracing/jaeger-ingester-rhel7 1.17.6-1, distributed-tracing/jaeger-rhel7-operator 1.17.6-1, distributed-tracing/jaeger-collector-rhel7 1.17.6-1, distributed-tracing/jaeger-all-in-one-rhel7 1.17.6-1, +2 more
    fixed: vendor fix RHSA-2020:3370
  • Red Hat OpenShift Service Mesh 1.1 kiali v1.12.10.redhat2-1.el7
    fixed: vendor fix RHSA-2020:3369
show 3 more
  • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts cockpit-ovirt 0.14.15-1.el8ev, cockpit-ovirt-dashboard 0.14.15-1.el8ev
    fixed: vendor fix RHSA-2020:5611
  • Red Hat RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4 rhvm 4.4.3.8-0.1.el8ev, ovirt-web-ui 1.6.4-1.el8ev, ovirt-engine 4.4.3.8-0.1.el8ev, ovirt-engine-setup 4.4.3.8-0.1.el8ev, ovirt-engine-tools 4.4.3.8-0.1.el8ev, ovirt-engine-backend 4.4.3.8-0.1.el8ev, +16 more
    fixed: vendor fix RHSA-2020:5179
  • Red Hat Quay v3 quay/clair-rhel8 v3.6.0-70, quay/quay-builder-rhel8 v3.6.0-44, quay/quay-operator-rhel8 v3.6.0-43, quay/quay-operator-bundle v3.6.0-48, quay/quay-bridge-operator-rhel8 v3.6.0-40, quay/quay-bridge-operator-bundle v3.6.0-35, +3 more Red Hat OpenShift Container Platform 4 openshift4/ose-jenkins-agent-nodejs Red Hat OpenShift Container Platform 4.6 openshift4/ose-cli v4.6.0-202010080605.p0, openshift4/ose-ptp v4.6.0-202010200139.p0, openshift4/ose-etcd v4.6.0-202010061132.p0, openshift4/ose-tests v4.6.0-202010120952.p0, openshift4/ose-console v4.6.0-202010100121.p0, openshift4/ose-coredns v4.6.0-202010061132.p0, +79 more Red Hat Virtualization 4 Hypervisor for RHEL 8 v2v-conversion-host 1.16.2-8.el8ev, v2v-conversion-host-ansible 1.16.2-8.el8ev, v2v-conversion-host-wrapper 1.16.2-8.el8ev, redhat-virtualization-host 4.4.3-20201210.0.el8_3, redhat-virtualization-host-image-update 4.4.3-20201210.0.el8_3 Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts v2v-conversion-host 1.16.2-8.el8ev, v2v-conversion-host-wrapper 1.16.2-8.el8ev Red Hat RHEL 8-based RHEV-H for RHEV 4 (build requirements) redhat-release-virtualization-host 4.4.3-2.el8ev, redhat-virtualization-host-image-update-placeholder 4.4.3-2.el8ev
    +1 more products
    Red Hat RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4 rhvm 4.4.2.3-0.6.el8ev, ovirt-web-ui 1.6.5-1.el8ev, engine-db-query 1.6.2-1.el8ev, ovirt-engine 4.4.2.3-0.6.el8ev, rhvm-branding-rhv 4.4.5-1.el8ev, rhvm-branding-rhv 4.4.6-1.el8ev, +37 more
    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 SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
6 d ago

Exploit prediction

5.21% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • hackerone.com https://hackerone.com/reports/712065 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:N/I:P/A:P
GitHub 3.1 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected packages

ecosystem package affected fixed in
npm lodash
>=3.7.0, <4.17.19
4.17.19
npm lodash-es
>=3.7.0, <4.17.20
4.17.20
npm lodash.pick
>=4.0.0, <=4.4.0
 no fix listed
npm lodash.set
>=3.7.0, <=4.3.2
 no fix listed
npm lodash.setwith
<=4.3.2
 no fix listed
npm lodash.update
<=4.10.2
 no fix listed
npm lodash.updatewith
<=4.10.2
 no fix listed
rubygems lodash-rails
>=3.7.0, <4.17.19
4.17.19

Affected products

  • n/a lodash

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling
  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes

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.