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Fencer Intel
medium 5.9

CVE-2021-27568 json

Improper Check for Unusual or Exceptional Conditions in json-smart

published 5y ago modified last mo. also GHSA-v528-7hrm-frqp , EUVD-2021-1405

cvss
5.9
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

An issue was discovered in netplex json-smart-v1 through 2015-10-23 and json-smart-v2 through 2.4. An exception is thrown from a function, but it is not caught, as demonstrated by NumberFormatException. When it is not caught, it may cause programs using the library to crash or expose sensitive information.

Patch / fix

  • maven net.minidev:json-smart 1.3.2, 2.3.1, 2.4.1
  • maven net.minidev:json-smart-mini 1.3.2
  • json-smart_project json-smart-v1 1.3.2
  • json-smart_project json-smart-v2 2.3.1, 2.4.1
  • oracle oss_support_tools 2.12.42

Is CVE-2021-27568 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

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-2021-27568 updated cvss 5.9

json-smart: uncaught exception may lead to crash or information disclosure

  • Red Hat Integration Camel K 1 json-smart
    affected: no fix available
  • Red Hat JBoss Fuse 6 json-smart
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Container Platform 4 jenkins-2-plugins, openshift4/ose-metering-hive, openshift4/ose-metering-hadoop, openshift4/ose-metering-presto, openshift4/ose-logging-elasticsearch6
    affected: no fix available, no fix planned “Out of support scope”
  • Red Hat AMQ Streams 1.8.0
    fixed: vendor fix RHSA-2021:3225
  • Red Hat Fuse 7.9
    fixed: vendor fix RHSA-2021:3140
  • Red Hat Fuse 7.10
    fixed: vendor fix RHSA-2021:5134
  • Red Hat Integration
    fixed: vendor fix RHSA-2021:4918
  • Red Hat Integration Camel Quarkus 2
    fixed: vendor fix RHSA-2021:4767
show 1 more
  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/elasticsearch6-rhel8 Red Hat Integration Camel Quarkus 1 json-smart Red Hat OpenShift Container Platform 3.11 openshift3/ose-logging-elasticsearch5
    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
yes
Technical impact
partial
Assessed
last mo.

Exploit prediction

2.89% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/netplex/json-smart-v1/issues/7 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/netplex/json-smart-v2/issues/60 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P
GitHub 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven net.minidev:json-smart
<1.3.2
>=2.4.0, <2.4.1
>=2.0.0, <2.3.1
1.3.2
2.4.1
2.3.1
maven net.minidev:json-smart-mini
<1.3.2
1.3.2

Classification

Weakness
  • CWE-754 Improper Check for Unusual or Exceptional Conditions

References

Sources

Fencer Intel 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.