CVE-2020-1953: apache apache commons configuration
Vulnerability summary
CVE-2020-1953 is a critical (CVSS 10.0) vulnerability in apache apache commons configuration. EPSS estimates a 6.32% chance of exploitation in the next 30 days, higher than 93.5% of scored vulnerabilities.
Timeline
- 13-03-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated10.0CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated10.0CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- OSV · MavenEcosystem advisory · calculated10.0CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS trend
Probability
6.32%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
-0.53 pp
From 6.85% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Apache2 products
- apache commons configuration2.2 | 2.3 | 2.4 | 2.5 | 2.6
- commons_configuration2.2 | 2.3 | 2.4 | 2.5 | 2.6
Oracle2 products
- database_server11.2.0.4 | 12.1.0.2 | 12.2.0.1 | 18c | 19c
- healthcare_foundation7.1.1 | 7.2.0 | 7.2.1 | 7.3.0
Debian1 product
- commons-configuration2< 2.7-1
Org.apache.commons1 product
- commons-configuration2≥ 2.2, < 2.7
Ubuntu1 product
- commons-configuration2All versions (No fix recorded)
5 vendors · 7 products
References
13 links- lists.apache.org/thread.html/…X Refsource MISC
- lists.apache.org/thread.html/…X Refsource MISC
