CVE-2023-27986: GNU Emacs

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

emacsclient-mail.desktop in Emacs 28.1 through 28.2 is vulnerable to Emacs Lisp code injections through a crafted mailto: URI with unescaped double-quote characters. It is fixed in 29.0.90.

Affected products

• GNU Emacs: from 28.1, up to and including 28.2

Published 2023-03-09. Last modified 2026-06-17.