# CVE-2026-96442: Emacs: emacs: arbitrary code execution in flymake mode

CVE-2026-96442 is fixed in 13 products on 1 platform, first by RHSA-2026:84591, released September 14, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-96442
- Priority: High
- CVSS: 7.8 (Important)
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 14, 2026
- Weakness: Improper Control of Generation of Code ('Code Injection')
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96442

## Description

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: Emacs: arbitrary code execution in Flymake mode (CVE-2026-96442)   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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | emacs RHEL 10 | 29.4-14.el10_2.3 | [RHSA-2026:84591](https://patchblox.com/security/data/fix/linux/rhsa-2026-84591.md) | Sep 14, 2026 |
| Linux | emacs RHEL 8 | 1:26.1-15.el8_10.4 | [RHSA-2026:90800](https://patchblox.com/security/data/fix/linux/rhsa-2026-90800.md) | Oct 29, 2026 |
| Linux | emacs RHEL 9 | 1:27.2-18.el9_8.3 | [RHSA-2026:85245](https://patchblox.com/security/data/fix/linux/rhsa-2026-85245.md) | Oct 20, 2026 |
| Linux | emacs almalinux 10 | 1:29.4-14.el10_2.3 | [ALSA-2026:84591](https://patchblox.com/security/data/fix/linux/alsa-2026-84591.md) | Nov 7, 2026 |
| Linux | emacs almalinux 8 | 1:26.1-15.el8_10.4 | [ALSA-2026:90800](https://patchblox.com/security/data/fix/linux/alsa-2026-90800.md) | Nov 7, 2026 |
| Linux | emacs almalinux 9 | 1:27.2-18.el9_8.3 | [ALSA-2026:85245](https://patchblox.com/security/data/fix/linux/alsa-2026-85245.md) | Nov 7, 2026 |
| Linux | emacs amzn 2023 | 1:28.2-3.amzn2023.0.12 | [ALAS2023-2026-3195](https://patchblox.com/security/data/fix/linux/alas2023-2026-3195.md) | Nov 7, 2026 |
| Linux | emacs ol 10 | 1:29.4-14.el10_2.3 | [ELSA-2026-84591](https://patchblox.com/security/data/fix/linux/elsa-2026-84591.md) | Nov 7, 2026 |
| Linux | emacs ol 8 | 1:26.1-15.el8_10.4 | [ELSA-2026-90800](https://patchblox.com/security/data/fix/linux/elsa-2026-90800.md) | Nov 7, 2026 |
| Linux | emacs ol 9 | 1:27.2-18.el9_8.3 | [ELSA-2026-85245](https://patchblox.com/security/data/fix/linux/elsa-2026-85245.md) | Nov 7, 2026 |
| Linux | emacs opensuse-leap 16.0 | 30.2-160000.4.1 | [OPENSUSE-SU-2026:21974-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21974-1.md) | Sep 29, 2026 |
| Linux | emacs rocky 10 | 1:29.4-14.el10_2.3 | [RLSA-2026:84591](https://patchblox.com/security/data/fix/linux/rlsa-2026-84591.md) | Nov 7, 2026 |
| Linux | emacs rocky 8 | 1:26.1-15.el8_10.4 | [RLSA-2026:90800](https://patchblox.com/security/data/fix/linux/rlsa-2026-90800.md) | Nov 7, 2026 |
| Linux | emacs rocky 9 | 1:27.2-18.el9_8.3 | [RLSA-2026:85245](https://patchblox.com/security/data/fix/linux/rlsa-2026-85245.md) | Nov 7, 2026 |
| Linux | emacs sles 15.6 | 27.2-150400.3.34.1 | [SUSE-SU-2026:4594-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4594-1.md) | Nov 7, 2026 |
| Linux | emacs sles 15.7 | 27.2-150400.3.34.1 | [SUSE-SU-2026:4594-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4594-1.md) | Nov 7, 2026 |
| Linux | emacs sles 16.0 | 30.2-160000.4.1 | [SUSE-SU-2026:23949-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23949-1.md) | Sep 29, 2026 |
| Linux | emacs-common RHEL 8 | 1:26.1-15.el8_10.4 | [RHSA-2026:90800](https://patchblox.com/security/data/fix/linux/rhsa-2026-90800.md) | Oct 29, 2026 |
| Linux | emacs-common RHEL 9 | 1:27.2-18.el9_8.3 | [RHSA-2026:85245](https://patchblox.com/security/data/fix/linux/rhsa-2026-85245.md) | Oct 20, 2026 |
| Linux | emacs-common almalinux 10 | 1:29.4-14.el10_2.3 | [ALSA-2026:84591](https://patchblox.com/security/data/fix/linux/alsa-2026-84591.md) | Nov 7, 2026 |
| Linux | emacs-common almalinux 8 | 1:26.1-15.el8_10.4 | [ALSA-2026:90800](https://patchblox.com/security/data/fix/linux/alsa-2026-90800.md) | Nov 7, 2026 |
| Linux | emacs-common almalinux 9 | 1:27.2-18.el9_8.3 | [ALSA-2026:85245](https://patchblox.com/security/data/fix/linux/alsa-2026-85245.md) | Nov 7, 2026 |
| Linux | emacs-common amzn 2023 | 1:28.2-3.amzn2023.0.12 | [ALAS2023-2026-3195](https://patchblox.com/security/data/fix/linux/alas2023-2026-3195.md) | Nov 7, 2026 |
| Linux | emacs-common ol 10 | 1:29.4-14.el10_2.3 | [ELSA-2026-84591](https://patchblox.com/security/data/fix/linux/elsa-2026-84591.md) | Nov 7, 2026 |
| Linux | emacs-common ol 8 | 1:26.1-15.el8_10.4 | [ELSA-2026-90800](https://patchblox.com/security/data/fix/linux/elsa-2026-90800.md) | Nov 7, 2026 |
| Linux | emacs-common ol 9 | 1:27.2-18.el9_8.3 | [ELSA-2026-85245](https://patchblox.com/security/data/fix/linux/elsa-2026-85245.md) | Nov 7, 2026 |
| Linux | emacs-common-debuginfo amzn 2023 | 1:28.2-3.amzn2023.0.12 | [ALAS2023-2026-3195](https://patchblox.com/security/data/fix/linux/alas2023-2026-3195.md) | Nov 7, 2026 |
| Linux | emacs-debuginfo amzn 2023 | 1:28.2-3.amzn2023.0.12 | [ALAS2023-2026-3195](https://patchblox.com/security/data/fix/linux/alas2023-2026-3195.md) | Nov 7, 2026 |
| Linux | emacs-debugsource amzn 2023 | 1:28.2-3.amzn2023.0.12 | [ALAS2023-2026-3195](https://patchblox.com/security/data/fix/linux/alas2023-2026-3195.md) | Nov 7, 2026 |
| Linux | emacs-devel amzn 2023 | 1:28.2-3.amzn2023.0.12 | [ALAS2023-2026-3195](https://patchblox.com/security/data/fix/linux/alas2023-2026-3195.md) | Nov 7, 2026 |
| Linux | emacs-filesystem RHEL 8 | 1:26.1-15.el8_10.4 | [RHSA-2026:90800](https://patchblox.com/security/data/fix/linux/rhsa-2026-90800.md) | Oct 29, 2026 |
| Linux | emacs-filesystem RHEL 9 | 1:27.2-18.el9_8.3 | [RHSA-2026:85245](https://patchblox.com/security/data/fix/linux/rhsa-2026-85245.md) | Oct 20, 2026 |
| Linux | emacs-filesystem almalinux 10 | 1:29.4-14.el10_2.3 | [ALSA-2026:84591](https://patchblox.com/security/data/fix/linux/alsa-2026-84591.md) | Nov 7, 2026 |
| Linux | emacs-filesystem almalinux 8 | 1:26.1-15.el8_10.4 | [ALSA-2026:90800](https://patchblox.com/security/data/fix/linux/alsa-2026-90800.md) | Nov 7, 2026 |
| Linux | emacs-filesystem almalinux 9 | 1:27.2-18.el9_8.3 | [ALSA-2026:85245](https://patchblox.com/security/data/fix/linux/alsa-2026-85245.md) | Nov 7, 2026 |
| Linux | emacs-filesystem amzn 2023 | 1:28.2-3.amzn2023.0.12 | [ALAS2023-2026-3195](https://patchblox.com/security/data/fix/linux/alas2023-2026-3195.md) | Nov 7, 2026 |
| Linux | emacs-filesystem ol 10 | 1:29.4-14.el10_2.3 | [ELSA-2026-84591](https://patchblox.com/security/data/fix/linux/elsa-2026-84591.md) | Nov 7, 2026 |
| Linux | emacs-filesystem ol 8 | 1:26.1-15.el8_10.4 | [ELSA-2026-90800](https://patchblox.com/security/data/fix/linux/elsa-2026-90800.md) | Nov 7, 2026 |
| Linux | emacs-filesystem ol 9 | 1:27.2-18.el9_8.3 | [ELSA-2026-85245](https://patchblox.com/security/data/fix/linux/elsa-2026-85245.md) | Nov 7, 2026 |
| Linux | emacs-lucid RHEL 8 | 1:26.1-15.el8_10.4 | [RHSA-2026:90800](https://patchblox.com/security/data/fix/linux/rhsa-2026-90800.md) | Oct 29, 2026 |
| Linux | emacs-lucid RHEL 9 | 1:27.2-18.el9_8.3 | [RHSA-2026:85245](https://patchblox.com/security/data/fix/linux/rhsa-2026-85245.md) | Oct 20, 2026 |
| Linux | emacs-lucid almalinux 10 | 1:29.4-14.el10_2.3 | [ALSA-2026:84591](https://patchblox.com/security/data/fix/linux/alsa-2026-84591.md) | Nov 7, 2026 |
| Linux | emacs-lucid almalinux 8 | 1:26.1-15.el8_10.4 | [ALSA-2026:90800](https://patchblox.com/security/data/fix/linux/alsa-2026-90800.md) | Nov 7, 2026 |
| Linux | emacs-lucid almalinux 9 | 1:27.2-18.el9_8.3 | [ALSA-2026:85245](https://patchblox.com/security/data/fix/linux/alsa-2026-85245.md) | Nov 7, 2026 |
| Linux | emacs-lucid amzn 2023 | 1:28.2-3.amzn2023.0.12 | [ALAS2023-2026-3195](https://patchblox.com/security/data/fix/linux/alas2023-2026-3195.md) | Nov 7, 2026 |
| Linux | emacs-lucid ol 10 | 1:29.4-14.el10_2.3 | [ELSA-2026-84591](https://patchblox.com/security/data/fix/linux/elsa-2026-84591.md) | Nov 7, 2026 |
| Linux | emacs-lucid ol 8 | 1:26.1-15.el8_10.4 | [ELSA-2026-90800](https://patchblox.com/security/data/fix/linux/elsa-2026-90800.md) | Nov 7, 2026 |
| Linux | emacs-lucid ol 9 | 1:27.2-18.el9_8.3 | [ELSA-2026-85245](https://patchblox.com/security/data/fix/linux/elsa-2026-85245.md) | Nov 7, 2026 |
| Linux | emacs-lucid-debuginfo amzn 2023 | 1:28.2-3.amzn2023.0.12 | [ALAS2023-2026-3195](https://patchblox.com/security/data/fix/linux/alas2023-2026-3195.md) | Nov 7, 2026 |
| Linux | emacs-nox RHEL 8 | 1:26.1-15.el8_10.4 | [RHSA-2026:90800](https://patchblox.com/security/data/fix/linux/rhsa-2026-90800.md) | Oct 29, 2026 |
| Linux | emacs-nox RHEL 9 | 1:27.2-18.el9_8.3 | [RHSA-2026:85245](https://patchblox.com/security/data/fix/linux/rhsa-2026-85245.md) | Oct 20, 2026 |
| Linux | emacs-nox almalinux 8 | 1:26.1-15.el8_10.4 | [ALSA-2026:90800](https://patchblox.com/security/data/fix/linux/alsa-2026-90800.md) | Nov 7, 2026 |
| Linux | emacs-nox almalinux 9 | 1:27.2-18.el9_8.3 | [ALSA-2026:85245](https://patchblox.com/security/data/fix/linux/alsa-2026-85245.md) | Nov 7, 2026 |
| Linux | emacs-nox amzn 2023 | 1:28.2-3.amzn2023.0.12 | [ALAS2023-2026-3195](https://patchblox.com/security/data/fix/linux/alas2023-2026-3195.md) | Nov 7, 2026 |
| Linux | emacs-nox ol 8 | 1:26.1-15.el8_10.4 | [ELSA-2026-90800](https://patchblox.com/security/data/fix/linux/elsa-2026-90800.md) | Nov 7, 2026 |
| Linux | emacs-nox ol 9 | 1:27.2-18.el9_8.3 | [ELSA-2026-85245](https://patchblox.com/security/data/fix/linux/elsa-2026-85245.md) | Nov 7, 2026 |
| Linux | emacs-nox-debuginfo amzn 2023 | 1:28.2-3.amzn2023.0.12 | [ALAS2023-2026-3195](https://patchblox.com/security/data/fix/linux/alas2023-2026-3195.md) | Nov 7, 2026 |
| Linux | emacs-nw almalinux 10 | 1:29.4-14.el10_2.3 | [ALSA-2026:84591](https://patchblox.com/security/data/fix/linux/alsa-2026-84591.md) | Nov 7, 2026 |
| Linux | emacs-nw ol 10 | 1:29.4-14.el10_2.3 | [ELSA-2026-84591](https://patchblox.com/security/data/fix/linux/elsa-2026-84591.md) | Nov 7, 2026 |
| Linux | emacs-terminal RHEL 8 | 1:26.1-15.el8_10.4 | [RHSA-2026:90800](https://patchblox.com/security/data/fix/linux/rhsa-2026-90800.md) | Oct 29, 2026 |
| Linux | emacs-terminal almalinux 8 | 1:26.1-15.el8_10.4 | [ALSA-2026:90800](https://patchblox.com/security/data/fix/linux/alsa-2026-90800.md) | Nov 7, 2026 |
| Linux | emacs-terminal amzn 2023 | 1:28.2-3.amzn2023.0.12 | [ALAS2023-2026-3195](https://patchblox.com/security/data/fix/linux/alas2023-2026-3195.md) | Nov 7, 2026 |
| Linux | emacs-terminal ol 8 | 1:26.1-15.el8_10.4 | [ELSA-2026-90800](https://patchblox.com/security/data/fix/linux/elsa-2026-90800.md) | Nov 7, 2026 |

---

Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.