CVE-2020-1953Apache 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.
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It affects Apache Commons Configuration and 2 other products. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 6.32%, higher than 94% of scored CVEs.
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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
- 10.0 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 6.32% (percentile 94)
- Assigned by
- apache
- NVD analysis
- Modified
- Record last updated
- Aug 4, 2024
- First seen by InfoSec Signals
- Oct 12, 2026
Affected products
Apache Apache Commons Configuration apache:commons_configuration (from the name) | 2.2; 2.3; 2.4; 2.5; 2.6 | CNA record |
apache commons_configuration apache:commons_configuration | 2.2; 2.3; 2.4; 2.5; 2.6 | NVD |
oracle database_server oracle:database_server | 11.2.0.4; 12.1.0.2; 12.2.0.1; 18c; 19c | NVD |
oracle healthcare_foundation oracle:healthcare_foundation | 7.1.1; 7.2.0; 7.2.1; 7.3.0 | NVD |
References
- https://lists.apache.org/thread.html/rde2186ad6ac0d6ed8d51af7509244adcf1ce0f9a3b7e1d1dd3b64676%40%3Ccommits.camel.apache.org%3Emailing-list, x-refsource-mlist
- https://lists.apache.org/thread.html/d0e00f2e147a9e9b13a6829133092f349b2882bf6860397368a52600%40%3Cannounce.tomcat.apache.org%3Ex-refsource-misc
- https://www.oracle.com/security-alerts/cpuoct2020.htmlx-refsource-misc, third-party-advisory
- https://lists.apache.org/thread.html/r16a2e949e35780c8974cf66104e812410f3904f752df6b66bf292269%40%3Ccommits.servicecomb.apache.org%3Ex-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.