CVE-2021-37714 (GCVE-0-2021-37714)

Vulnerability from cvelistv5 – Published: 2021-08-18 15:10 – Updated: 2026-10-08 21:03
VLAI
Title
Crafted input may cause the jsoup HTML and XML parser to get stuck, timeout, or throw unchecked exceptions
Summary
jsoup is a Java library for working with HTML. Those using jsoup versions prior to 1.14.2 to parse untrusted HTML or XML may be vulnerable to DOS attacks. If the parser is run on user supplied input, an attacker may supply content that causes the parser to get stuck (loop indefinitely until cancelled), to complete more slowly than usual, or to throw an unexpected exception. This effect may support a denial of service attack. The issue is patched in version 1.14.2. There are a few available workarounds. Users may rate limit input parsing, limit the size of inputs based on system resources, and/or implement thread watchdogs to cap and timeout parse runtimes.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 20:58 UTC
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
  • CWE-248 - Uncaught Exception
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7628 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
jhy jsoup Affected: < 1.14.2
guessed Create a notification for this product.
Show details on NVD website

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          "value": "jsoup is a Java library for working with HTML. Those using jsoup versions prior to 1.14.2 to parse untrusted HTML or XML may be vulnerable to DOS attacks. If the parser is run on user supplied input, an attacker may supply content that causes the parser to get stuck (loop indefinitely until cancelled), to complete more slowly than usual, or to throw an unexpected exception. This effect may support a denial of service attack. The issue is patched in version 1.14.2. There are a few available workarounds. Users may rate limit input parsing, limit the size of inputs based on system resources, and/or implement thread watchdogs to cap and timeout parse runtimes."
        },
        {
          "lang": "es",
          "value": "jsoup es una biblioteca Java para trabajar con HTML. Aquellos usando versiones de jsoup anteriores a 1.14.2 para analizar HTML o XML no confiables pueden ser vulnerables a ataques DOS. Si el analizador es ejecutado con una entrada suministrada por el usuario, un atacante puede suministrar contenido que cause que el analizador se atasque (un bucle indefinido hasta que se cancele), para completarse m\u00e1s lentamente de lo habitual o que lance una excepci\u00f3n inesperada. Este efecto puede permitir un ataque de denegaci\u00f3n de servicio. El problema est\u00e1 parcheado en versi\u00f3n 1.14.2. Se presentan algunas soluciones disponibles. Los usuarios pueden limitar el an\u00e1lisis de las entradas, limitar el tama\u00f1o de las entradas en funci\u00f3n de los recursos del sistema, y/o implementar controles de hilos para limitar el tiempo de ejecuci\u00f3n del an\u00e1lisis."
        }
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      "id": "CVE-2021-37714",
      "lastModified": "2024-11-21T06:15:46.567",
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}



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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.

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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.


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