THREATPORT/VULNERABILITY/CVE-2021-37714
HIGH SEVERITY

CVE-2021-37714

Jsoup vulnerability

CVSS
7.5
EPSS
6.9%
EPSS pct
93th
Exploited
No known
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.
Affected vendor
Jsoup
Affected product
Jsoup
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-248
  • CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)
Published
2021-08-18

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 6.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2021-37714

  • Confirm whether Jsoup Jsoup is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-37714.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-37714

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-37714 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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