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Fencer Vulns
high 7.5

CVE-2023-34623 json

An issue was discovered jtidy thru r938 allows attackers to cause a denial of service or other unspecified impacts via crafted object that…

published 2023-06-14 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-38668

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

An issue was discovered jtidy thru r938 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.

Patch / fix

  • jtidy SLE Software Development Kit 12 SP5 8.0-27.3.1
  • jtidy SLE Real Time 15 SP3, SLE Module for Development Tools 15 SP5, SLE Module for Development Tools 15 SP4 +2 more 8.0-150200.11.7.1
  • jtidy SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS 8.0-150000.4.3.1

suse advisories SUSE-SU-2023:3165-1SUSE-SU-2023:3164-1SUSE-SU-2023:3016-1

  • jtidy openSUSE Tumbleweed 1.0.4-1.1

opensuse advisories openSUSE-SU-2024:13152-1

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-2023-34623 updated cvss 7.5

jtidy: denial of service via crafted object that uses cyclic dependencies

  • Red Hat Migration Toolkit for Applications 6 org.jboss.windup.plugin-windup-maven-plugin-parent Red Hat Migration Toolkit for Runtimes org.jboss.windup.plugin-windup-maven-plugin-parent Red Hat JBoss Enterprise Application Platform 6 jtidy Red Hat JBoss Fuse 6 jtidy Red Hat OpenShift Container Platform 3.11 jenkins Red Hat Software Collections rh-maven36-jtidy, rh-maven36-jtidy-javadoc
    affected: workaround, no fix planned “This flaw can be mitigated by implementing sanitization against excessive nesting in user requests.”
  • Red Hat A-MQ Clients 2 jtidy Red Hat Cryostat 2 jtidy Red Hat OpenShift Developer Tools and Services jenkins Red Hat AMQ Broker 7 jtidy Red Hat build of Apache Camel for Spring Boot 3 jtidy Red Hat build of Apicurio Registry 2 jtidy
    +16 more products
    Red Hat build of Debezium 1 jtidy Red Hat build of Debezium 2 jtidy Red Hat Data Grid 8 jtidy Red Hat Decision Manager 7 jtidy Red Hat Fuse 7 jtidy Red Hat Integration Camel K 1 jtidy Red Hat Integration Camel Quarkus 2 jtidy Red Hat JBoss Data Grid 7 jtidy Red Hat JBoss Enterprise Application Platform 7 jtidy Red Hat JBoss Enterprise Application Platform 8 jtidy Red Hat JBoss Enterprise Application Platform Expansion Pack jtidy Red Hat OpenShift Application Runtimes jtidy Red Hat OpenShift Container Platform 4 jenkins Red Hat Process Automation 7 jtidy Red Hat Single Sign-On 7 jtidy Red Hat streams for Apache Kafka jtidy
    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
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
22 mo ago

Exploit prediction

0.87% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/trajano/jtidy/issues/4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/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
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

Weakness

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.