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Fencer Vulns
medium 5.3

CVE-2026-45205 json

Apache Commons Configuration: StackOverflowError for YAML input with cycles

published 2026-05-14 5 mo ago modified 2026-10-26 13 d ago also GHSA-337m-mw94-2v6g , EUVD-2026-30267

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

Uncontrolled Recursion vulnerability in Apache Commons.

When processing an untrusted configuration file, Commons Configuration will throw a StackOverflowError for YAML input with cycles. This issue affects Apache Commons: from 2.2 before 2.15.0.

Users are recommended to upgrade to version 2.15.0, which fixes the issue.

Patch / fix

  • maven org.apache.commons:commons-configuration2 2.15.0
  • Apache Software Foundation Apache Commons Configuration 2.15.0
  • commons-configuration2 Debian 14 2.15.1-1

debian advisories DEBIAN-CVE-2026-45205

  • apache-commons-text SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +8 more 1.15.0-150200.5.14.1
  • apache-commons-configuration2 SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +8 more 2.15.0-150200.5.11.1
  • apache-commons-codec SLES for SAP applications 16.0, SLES 16.0 1.22.0-160000.1.1
  • apache-commons-io SLES for SAP applications 16.0, SLES 16.0 2.22.0-160000.1.1
  • apache-commons-cli SLES for SAP applications 16.0, SLES 16.0 1.11.0-160000.1.1
  • apache-commons-text SLES for SAP applications 16.0, SLES 16.0 1.15.0-160000.1.1
  • apache-commons-lang3 SLES for SAP applications 16.0, SLES 16.0 3.20.0-160000.1.1
  • apache-commons-configuration2 SLES for SAP applications 16.0, SLES 16.0 2.15.0-160000.1.1

suse advisories SUSE-SU-2026:2642-1SUSE-SU-2026:21996-1

  • apache-commons-configuration2 openSUSE Tumbleweed 2.15.0-1.1

opensuse advisories openSUSE-SU-2026:10784-1

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-2026-45205 updated cvss 7.5

commons-configuration: Apache Commons Configuration: Denial of Service via uncontrolled recursion with crafted YAML input

  • Red Hat OpenShift Developer Tools and Services jenkins-2-plugins, ocp-tools-4/jenkins-rhel8, ocp-tools-4/jenkins-rhel9 Red Hat AMQ Clients commons-configuration2 Red Hat build of Apicurio Registry 3 commons-configuration2 Red Hat Enterprise Linux 6 qpid-cpp, qpid-qmf, ruby-qpid-qmf, python-qpid-qmf, qpid-cpp-client, qpid-cpp-server, +7 more
    affected: workaround, no fix available
  • Red Hat Single Sign-On 7 commons-configuration, commons-configuration2
    affected: workaround, no fix planned “Will not fix”
  • Red Hat AMQ Broker 7.13.6
    fixed: vendor fix RHSA-2026:66545
  • Red Hat AMQ Broker 7.14.1
    fixed: vendor fix RHSA-2026:66488
  • Red Hat build of Apache Camel 4.18.3 for Spring Boot 3.5.16
    fixed: vendor fix RHSA-2026:54622
  • Red Hat Data Grid 8 commons-configuration
    not affected: component not present
  • Red Hat Enterprise Linux 7 apache-commons-configuration, apache-commons-configuration-javadoc
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 8 maven-assembly-plugin, maven-assembly-plugin-javadoc Red Hat JBoss Enterprise Application Platform 7 commons-configuration Red Hat JBoss Enterprise Application Platform Expansion Pack commons-configuration, commons-configuration2, resilience4j-commons-configuration
    not affected: component not present
show 1 more
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-spark-operator-rhel9, rhoai/odh-th06-cpu-torch210-py312-rhel9, rhoai/odh-th06-cpu-torch291-py312-rhel9, rhoai/odh-th06-rocm64-torch291-py312-rhel9, rhoai/odh-th06-cuda130-torch210-py312-rhel9, rhoai/odh-th06-cuda130-torch291-py312-rhel9 Red Hat Satellite 6 candlepin, candlepin-selinux
    not affected: vulnerable code not in execute path

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
5 mo ago

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
GitHub 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected packages

ecosystem package affected fixed in
maven org.apache.commons:commons-configuration2
>=2.2, <2.15.0
2.15.0

Affected products

  • Apache Software Foundation Apache Commons Configuration

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.