CVE-2022-24836

Nokogiri vulnerability

CVSS

7.5

EPSS

3.5%

EPSS pct

88th

Exploited

No known

Nokogiri is an open source XML and HTML library for Ruby. Nokogiri `< v1.13.4` contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to detect encoding in HTML documents. Users are advised to upgrade to Nokogiri `>= 1.13.4`. There are no known workarounds for this issue.

Affected vendor

Nokogiri

Affected product

Nokogiri

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-400 — Uncontrolled Resource Consumption
CWE-1333 — Inefficient Regular Expression Complexity

Published

2022-04-11

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 3.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2022-24836

Confirm whether Nokogiri Nokogiri is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2022-24836.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2022-24836

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2022-24836 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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