CVE-2020-17521 (GCVE-0-2020-17521)

Vulnerability from cvelistv5 – Published: 2020-12-07 19:22 – Updated: 2026-10-08 21:13
VLAI
Summary
Apache Groovy provides extension methods to aid with creating temporary directories. Prior to this fix, Groovy's implementation of those extension methods was using a now superseded Java JDK method call that is potentially not secure on some operating systems in some contexts. Users not using the extension methods mentioned in the advisory are not affected, but may wish to read the advisory for further details. Versions Affected: 2.0 to 2.4.20, 2.5.0 to 2.5.13, 3.0.0 to 3.0.6, and 4.0.0-alpha-1. Fixed in versions 2.4.21, 2.5.14, 3.0.7, 4.0.0-alpha-2.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 21:07 UTC
CWE
  • Information Disclosure
Assigner
apache CNA under the mitre root
CNA scorecard B 76/100 over 935 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache Groovy Affected: 2.0 to 2.4.20
Affected: 2.5.0 to 2.5.13
Affected: 3.0.0 to 3.0.6
Affected: 4.0.0-alpha-1
guessed Create a notification for this product.
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          "lang": "en",
          "value": "Apache Groovy provides extension methods to aid with creating temporary directories. Prior to this fix, Groovy\u0027s implementation of those extension methods was using a now superseded Java JDK method call that is potentially not secure on some operating systems in some contexts. Users not using the extension methods mentioned in the advisory are not affected, but may wish to read the advisory for further details. Versions Affected: 2.0 to 2.4.20, 2.5.0 to 2.5.13, 3.0.0 to 3.0.6, and 4.0.0-alpha-1. Fixed in versions 2.4.21, 2.5.14, 3.0.7, 4.0.0-alpha-2."
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        {
          "lang": "es",
          "value": "Apache Groovy provee m\u00e9todos de extensi\u00f3n para ayudar a crear directorios temporales. Antes de esta correcci\u00f3n, la implementaci\u00f3n de Groovy de esos m\u00e9todos de extensi\u00f3n utilizaba una llamada al m\u00e9todo JDK de Java ahora reemplazada que potencialmente no es segura en algunos sistemas operativos en algunos contextos. Los usuarios que no usen los m\u00e9todos de extensi\u00f3n mencionados en el aviso no est\u00e1n afectados, pero es posible que deseen leer el aviso para obtener m\u00e1s detalles. Versiones afectadas: 2.0 hasta 2.4.20, 2.5.0 hasta 2.5.13, 3.0.0 hasta 3.0.6 y 4.0.0-alpha-1. Corregido en las versiones 2.4.21, 2.5.14, 3.0.7, 4.0.0-alpha-2"
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.