# org.apache.commons:commons-configuration2 (Maven) vulnerabilities

5 known vulnerabilities (1 high, 2 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://central.sonatype.com/artifact/org.apache.commons/commons-configuration2

## Advisories (5)

### [CVE-2026-45205](https://cve.now/CVE-2026-45205): Apache Commons Configuration: StackOverflowError for YAML input with cycles

- Severity: Medium 5.3
- Published: May 14, 2026
- Affected: from 2.2, fixed in 2.15.0; from 2.2, fixed in 2.15.0.

### [CVE-2024-29131](https://cve.now/CVE-2024-29131): Apache Commons Configuration: StackOverflowError adding property in AbstractListDelimiterHandler.flattenIterator()

- Severity: High 7.3
- Published: Mar 21, 2024
- Affected: from 2.0, fixed in 2.10.1; from 2.0, fixed in 2.10.1.

### [CVE-2024-29133](https://cve.now/CVE-2024-29133): Apache Commons Configuration: StackOverflowError calling ListDelimiterHandler.flatten(Object, int) with a cyclical object tree

- Severity: Medium 5.4
- Published: Mar 21, 2024
- Affected: from 2.0, fixed in 2.10.1; from 2.0, fixed in 2.10.1.

### [CVE-2022-33980](https://cve.now/CVE-2022-33980): Apache Commons Configuration insecure interpolation defaults

- Severity: Unrated
- Published: Jul 6, 2022
- Affected: from 2.4, fixed in 2.8.0.

### [CVE-2020-1953](https://cve.now/CVE-2020-1953): Apache Commons Configuration uses a third-party library to parse YAML files which by default allows the instantiation of classes if the…

- Severity: Unrated
- Published: Mar 13, 2020
- Affected: from 2.2, fixed in 2.7.

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