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In elisp-mode.el in GNU Emacs through 30.0.92, a user who chooses to invoke elisp-completion-at-point (for code completion) on untrusted Emacs Lisp source code can trigger unsafe Lisp macro expansion that allows attackers to execute arbitrary code. (This unsafe expansion also occurs if a user chooses to enable on-the-fly diagnosis that byte compiles untrusted Emacs Lisp source code.)
Reserved 2024-11-25 | Published 2024-11-27 | Updated 2024-12-02 | Assigner mitregit.savannah.gnu.org/cgit/emacs.git/tree/ChangeLog.4
git.savannah.gnu.org/cgit/emacs.git/tag/?h=emacs-30.0.92
eshelyaron.com/...ry-code-execution-and-how-to-avoid-it.html
yhetil.org/...qH34UbYU56_t6t2Er0YEh1Sb7-W=hg@mail.gmail.com/
news.ycombinator.com/item?id=42256409
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