Bug 2539107

Summary: CVE-2026-96269 emacs: GNU Emacs: Arbitrary code execution upon opening a file [fedora-all]
Product: [Fedora] Fedora Reporter: Vladimir Vasilev <vvasilev>
Component: emacsAssignee: Daiki Ueno <dueno>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: benson_muite, dan.cermak, dueno, gordon.messmer, marcandre.lureau, mavit, msekleta, phracek
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["2f793553-e594-459c-80e6-85016a488c3f"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-09-24 12:02:49 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2538925    

Description Vladimir Vasilev 2026-09-23 07:42:12 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

GNU Emacs 28.1 through 31.1 allows arbitrary code execution upon opening a file, because an untrusted value of read-symbol-shorthands affects the intern and unintern functions. This affects the default configuration; no particular user settings are required to trigger it.

Comment 1 Peter Oliver 2026-09-24 12:02:49 UTC
It is my understanding that this is already fixed on all current Fedora branches (e.g., https://src.fedoraproject.org/rpms/emacs/c/34f2c1438b33a8034ff7b677788dec2e31dcf8af?branch=rawhide).  Please reopen if you believe that this is not the case.