Description
An issue was discovered in GNU Emacs through 28.2. htmlfontify.el has a command injection vulnerability. In the hfy-istext-command function, the parameter file and parameter srcdir come from external input, and parameters are not escaped. If a file name or directory name contains shell metacharacters, code may be executed.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | emacs | 1:28.2+1-11 | — |
| Debian 13 | emacs | 1:28.2+1-11 | — |
| Debian 12 | emacs | 1:28.2+1-11 | — |
| Debian 11 | emacs | 1:27.1+1-3.1+deb11u2 | DSA-5360-1 |
| Debian 10 | emacs | 1:26.1+1-3.2+deb10u4 | DLA-3416-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | xemacs21 +1 | No fix yet | — |
| Ubuntu 26.04 LTS | xemacs21 +1 | No fix yet | — |
| Ubuntu 25.10 | xemacs21 +1 | No fix yet | — |
| Ubuntu 24.04 LTS | xemacs21 +1 | No fix yet | — |
| Ubuntu 22.04 LTS | emacs | 1:27.1+1-3ubuntu5.2 | USN-7027-1 |
| Ubuntu 22.04 LTS | xemacs21 +1 | No fix yet | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | xemacs21 +1 | No fix yet | — |
| Ubuntu 18.04 LTS | xemacs21 +1 | No fix yet | — |
| Ubuntu 16.04 LTS | xemacs21 +1 | No fix yet | — |
| Ubuntu Pro 24.04 LTS | emacs | 1:29.3+1-1ubuntu2+esm1 | USN-7027-1 |
| Ubuntu Pro 20.04 LTS | emacs | 1:26.3+1-1ubuntu2+esm1 | USN-7027-1 |
| Ubuntu Pro 18.04 LTS | emacs25 | 25.2+1-6ubuntu0.1~esm2 | USN-7027-1 |
| Ubuntu Pro 16.04 LTS | emacs24 | 24.5+1-6ubuntu1.1+esm2 | USN-7027-1, USN-5955-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | emacs +4 | 1:27.2-8.el9_2.1 | RHSA-2023:2626 |
| RHEL 8 | emacs +5 | 1:26.1-11.el8 | RHSA-2023:7083 |
| RHEL 7 | emacs +5 | 1:24.3-23.el7_9.1 | RHSA-2023:3481 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.8 EUS | emacs +5 | 1:26.1-10.el8_8.4 | RHSA-2024:1408 |
| RHEL 8.6 EUS | emacs +5 | 1:26.1-7.el8_6.3 | RHSA-2024:1103 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | emacs +4 | 1:27.2-8.el9_2.1 | ALSA-2023:2626 |
| AlmaLinux 8 | emacs +5 | 1:26.1-11.el8 | ALSA-2023:7083 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | emacs | 1:26.1-11.el8 | RLSA-2023:7083 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | emacs | 27.2-150400.3.6.1 | SUSE-SU-2023:0598-1 |
| SLES 15 SP3 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
| SLES 15 SP2 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
| SLES 15 SP1 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
| SLES 12 SP5 | emacs | 24.3-25.12.1 | SUSE-SU-2023:0597-1 |
Show 17 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | emacs | 24.3-25.12.1 | SUSE-SU-2023:0597-1 |
| SLES 12 SP2 | emacs | 24.3-25.12.1 | SUSE-SU-2023:0597-1 |
| SLES for SAP 15 SP3 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
| SLES for SAP 15 SP2 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
| SLES for SAP 15 SP1 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
| SLES for SAP 12 SP5 | emacs | 24.3-25.12.1 | SUSE-SU-2023:0597-1 |
| SLES for SAP 12 SP4 | emacs | 24.3-25.12.1 | SUSE-SU-2023:0597-1 |
| SLE Real Time 15 SP3 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
| SLE HPC 15 SP3 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
| SLE HPC 15 SP2 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
| SLE HPC 15 SP1 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
| SUSE OpenStack Cloud Crowbar 9 | emacs | 24.3-25.12.1 | SUSE-SU-2023:0597-1 |
| SUSE OpenStack Cloud 9 | emacs | 24.3-25.12.1 | SUSE-SU-2023:0597-1 |
| SUSE Manager Server 4.2 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
| SUSE Manager Proxy 4.2 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
| SUSE Enterprise Storage 7.1 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
| SUSE Enterprise Storage 7 | emacs | 25.3-150000.3.15.1 | SUSE-SU-2023:0675-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | emacs | 28.2-2.1 | openSUSE-SU-2024:12721-1 |
| openSUSE Leap 15.4 | emacs | 27.2-150400.3.6.1 | SUSE-SU-2023:0598-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | emacs +6 | 1:28.2-3.amzn2023.0.3 | ALAS2023-2023-122 |
| Amazon Linux 2 | emacs +6 | 1:27.2-4.amzn2.0.3 | ALAS2-2023-1981 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | emacs | 28.2-4 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | emacs +4 | 1:27.2-8.el9_2.1 | ELSA-2023-2626 |
| Oracle Linux 8 | emacs +5 | 1:26.1-11.el8 | ELSA-2023-7083 |
| Oracle Linux 7 | emacs +5 | 1:24.3-23.el7_9.1 | ELSA-2023-3481 |
Advisories 26
- ALSA-2023:2626 Important: emacs security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:7083 Moderate: emacs security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2024-0794 Dell ECS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 11, 2026
- WID-SEC-2023-2917 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 30, 2026
- RHSA-2024:1103 Red Hat Security Advisory: emacs security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2024:1408 Red Hat Security Advisory: emacs security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2023:3481 Red Hat Security Advisory: emacs security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2023:7083 Red Hat Security Advisory: emacs security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-7027-1 emacs, emacs24, emacs25 vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-5955-1 emacs24 vulnerability Ubuntu Security Notices (USN) · Jun 25, 2026
- RLSA-2023:7083 Moderate: emacs security update Rocky Linux Security Advisories · Jun 25, 2026
- DSA-5360-1 emacs - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3416-1 emacs - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2023:0597-1 Security update for emacs SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0675-1 Security update for emacs SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12721-1 emacs-28.2-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0598-1 Security update for emacs SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2023:2626 Red Hat Security Advisory: emacs security update Red Hat Security Advisories (RHSA) · Jan 22, 2026
- WID-SEC-2023-1542 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 18, 2025
- ALAS2023-2023-122 Important: emacs security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 9, 2025
- WID-SEC-2023-2625 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 6, 2025
- WID-SEC-2023-0437 GNU Emacs: Mehrere Schwachstellen ermöglichen Codeausführung BSI CERT-Bund (WID) · Sep 19, 2024
- ELSA-2023-7083 Moderate: emacs security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 17, 2023
- ELSA-2023-3481 Moderate: emacs security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 7, 2023
- ELSA-2023-2626 Important: emacs security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 17, 2023
- ALAS2-2023-1981 Important: emacs security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Mar 7, 2023
References
- https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=1b4dc4691c1f87fc970fbe568b43869a15ad0d4c
- DSA-5360 vendor-advisory
- [debian-lts-announce] 20230509 [SECURITY] [DLA 3416-1] emacs security update mailing-list
- FEDORA-2023-5763445abe vendor-advisory
- FEDORA-2023-29df561f1d vendor-advisory