CVE-2026-96269

high

Description

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.

References

https://yhetil.org/emacs/[email protected]/T/#m319545e835fb71d764bf868166632d4633167a75

https://www.openwall.com/lists/oss-security/2026/08/20/3

https://eshelyaron.com/posts/2026-08-06-emacs-arbitrary-code-execution-returns.html

https://debbugs.gnu.org/cgi/bugreport.cgi?bug=80574#227

Details

Source: Mitre, NVD

Published: 2026-09-22

Updated: 2026-09-24

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 7.5

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00184