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High severityNVD Advisory· Published Aug 18, 2021· Updated Aug 4, 2024

Crafted input may cause the jsoup HTML and XML parser to get stuck, timeout, or throw unchecked exceptions

CVE-2021-37714

Description

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
org.jsoup:jsoupMaven
< 1.14.21.14.2

Affected products

29

Patches

Vulnerability mechanics

References

24

News mentions

0

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