CVE-2026-57236: Nokogiri: Possible Use-After-Free when `Nokogiri::XML::Document#encoding=` raises an exception

Overview

Severity

High (CVSS 8.2)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Jun

Released

2026-06-27

EPSS Score

0.33% (percentile: 24.9%)

Affected Products (1)

Other

• 21473-17084

Revision History

• 2026-06-27: Information published.