CVE catalog
CVE-2020-1953
commons-configuration2: CVE-2020-1953
- Severity
- Critical · CVSS 9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 6.32% · Oct 25, 2026
Apache Commons Configuration uses a third-party library to parse YAML files which by default allows the instantiation of classes if the YAML includes special statements. Apache Commons Configuration versions 2.2, 2.3, 2.4, 2.5, 2.6 did not change the default settings of this library. So if a YAML file was loaded from an untrusted source, it could therefore load and execute code out of the control of the host application.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | commons-configuration2 | sid | 2.15.1-1 | fixed |
| Debian | commons-configuration2 | forky | 2.15.1-1 | fixed |
| Debian | commons-configuration2 | trixie | 2.11.0-2 | fixed |
| Debian | commons-configuration2 | bookworm | 2.8.0-2 | fixed |
| Ubuntu | commons-configuration2 | 18.04 | 2.1.1-1 | vulnerable |
| Ubuntu | commons-configuration2 | 18.04 | 2.2-1 | vulnerable |
| Ubuntu | commons-configuration2 | 20.04 | 2.2-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | commons-configuration2 | source | sid | 2.7-1 | not yet assigned | Not reported | [954713] |
| Debian | commons-configuration2 | source | forky | 2.7-1 | not yet assigned | Not reported | [954713] |
| Debian | commons-configuration2 | source | trixie | 2.7-1 | not yet assigned | Not reported | [954713] |
| Debian | commons-configuration2 | source | bookworm | 2.7-1 | not yet assigned | Not reported | [954713] |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
Source package: [commons-configuration2]
Details (2)
2.8.0-2· all · bookwormFixed · Fixed:
2.7-1dsa · commons-configuration2 · debian · bookworm; dsa · commons-configuration2 · debian · 12
2.8.0-2· all · bookwormFixed · Fixed:
2.7-1dsa · commons-configuration2 · debian · bookworm; dsa · commons-configuration2 · debian · 12
[Debian 13 (Trixie)]
Source package: [commons-configuration2]
Details (2)
2.11.0-2· all · trixieFixed · Fixed:
2.7-1dsa · commons-configuration2 · debian · 13
2.11.0-2· all · trixieFixed · Fixed:
2.7-1dsa · commons-configuration2 · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2020-1953]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2020-1953]
- [https://security-tracker.debian.org/tracker/CVE-2020-1953]
- [https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-1953.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]