CVE-2018-1000858: Canonical Ubuntu Linux

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060.

Affected products

• Canonical Ubuntu Linux: version 18.04 only; version 18.10 only
• Gnupg Gnupg: from 2.1.12, up to and including 2.2.11

Published 2018-12-20. Last modified 2026-06-17.