CVE-2020-1953

highpriority · track · 42EPSS 0.063 · 94 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

6.32% (94th) EPSS

CVSS 7.5 · high

Is it mine?

29 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–10

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 6

v3.110criticalAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · OSV

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-20US

affected products (29)

Products and version ranges known to be affected.

Apache Apache Commons Configuration≤ 2.5enisa_euvdEU
Apache Apache Commons Configuration≤ 2.6enisa_euvdEU
Apache Apache Commons Configuration≤ 2.2enisa_euvdEU
Apache Apache Commons Configuration≤ 2.4enisa_euvdEU
Apache Apache Commons Configuration≤ 2.3enisa_euvdEU
Apache Software Foundation Commons Configuration≤ 2.2fstec_bduRU
Apache Software Foundation Commons Configuration≤ 2.6fstec_bduRU
Apache Software Foundation Commons Configuration≤ 2.5fstec_bduRU
Apache Software Foundation Commons Configuration≤ 2.4fstec_bduRU
Apache Software Foundation Commons Configuration≤ 2.3fstec_bduRU
Oracle Corp. Oracle Healthcare Foundation≤ 7.2.1fstec_bduRU
Oracle Corp. Oracle Healthcare Foundation≤ 7.2.0fstec_bduRU
Oracle Corp. Oracle Healthcare Foundation≤ 7.1.1fstec_bduRU
Oracle Corp. Oracle Healthcare Foundation≤ 7.3.0fstec_bduRU
apache commons configuration= 2.2nvdUScpe:2.3:a:apache:commons_configuration:*:*:*:*:*:*:*:*
apache commons configuration= 2.3nvdUScpe:2.3:a:apache:commons_configuration:*:*:*:*:*:*:*:*
apache commons configuration= 2.4nvdUScpe:2.3:a:apache:commons_configuration:*:*:*:*:*:*:*:*
apache commons configuration= 2.5nvdUScpe:2.3:a:apache:commons_configuration:*:*:*:*:*:*:*:*
apache commons configuration= 2.6nvdUScpe:2.3:a:apache:commons_configuration:*:*:*:*:*:*:*:*
oracle database server= 11.2.0.4nvdUScpe:2.3:a:oracle:database_server:*:*:*:*:*:*:*:*

showing 20 of 29

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-7qx4-pp76-vrqhRemote code execution in Apache Commons Configuration2020-05-21ghsa · osvUS
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.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd osv NVD CVE.org MITRE

published 2020-03-13modified 2026-06-17

references (23)

External citations — patches, advisories, analysis.

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