RLSA-2026:98574: Important: emacs security update
GNU Emacs is a powerful, customizable, self-documenting text editor. It provides special code editing features, a scripting language (elisp), and the capability to read e-mail and news.
Security Fix(es):
emacs: GNU Emacs: Heap over-read leading to information disclosure via crafted image (CVE-2026-77219)
emacs: emacs: Command injection via crafted filenames in TRAMP (CVE-2026-79992)
emacs: Emacs: arbitrary code execution in Flymake mode (CVE-2026-96442)
emacs: GNU Emacs: Arbitrary code execution upon opening a file (CVE-2026-96269)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
rocky-linux/emacs-commonto a version that resolves this vulnerability.Fixed in 1:29.4-17.el10_3 - Upgrade
Upgrade
rocky-linux/emacs-nw-debuginfoto a version that resolves this vulnerability.Fixed in 1:29.4-17.el10_3 - Upgrade
Upgrade
rocky-linux/emacs-common-debuginfoto a version that resolves this vulnerability.Fixed in 1:29.4-17.el10_3 - Upgrade
Upgrade
rocky-linux/emacs-lucid-debuginfoto a version that resolves this vulnerability.Fixed in 1:29.4-17.el10_3 - Upgrade
Upgrade
rocky-linux/emacs-nwto a version that resolves this vulnerability.Fixed in 1:29.4-17.el10_3 - Upgrade
Upgrade
rocky-linux/emacs-debuginfoto a version that resolves this vulnerability.Fixed in 1:29.4-17.el10_3 - Upgrade
Upgrade
rocky-linux/emacs-debugsourceto a version that resolves this vulnerability.Fixed in 1:29.4-17.el10_3 - Upgrade
Upgrade
rocky-linux/emacsto a version that resolves this vulnerability.Fixed in 1:29.4-17.el10_3 - Upgrade
Upgrade
rocky-linux/emacs-lucidto a version that resolves this vulnerability.Fixed in 1:29.4-17.el10_3 - Upgrade
Upgrade
rocky-linux/emacs-filesystemto a version that resolves this vulnerability.Fixed in 1:29.4-17.el10_3
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
Which installed packages are covered by this update?
The update covers rocky-linux/emacs, rocky-linux/emacs-common, rocky-linux/emacs-nw, rocky-linux/emacs-lucid, and the listed Emacs debuginfo and debugsource packages.
What attacker interaction is described by the listed issues?
The listed issues involve crafted images, crafted filenames in TRAMP, opening a file, and Flymake mode. The advisory does not state whether these conditions can be reached through default configuration or whether remote delivery is possible.
What impacts are identified in the advisory?
The advisory lists heap over-read information disclosure, command injection through TRAMP crafted filenames, and arbitrary code execution associated with Flymake mode and opening a file.