Description
A flaw was found in GNU Emacs. This vulnerability, a memory corruption issue, occurs when Emacs processes specially crafted SVG (Scalable Vector Graphics) CSS (Cascading Style Sheets) data. A local user could exploit this by convincing a victim to open a malicious SVG file, which may lead to a denial of service (DoS) or potentially information disclosure.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
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 | 1:30.2+1-3 | — |
| Debian 13 | emacs | 1:30.1+1-6+deb13u1 | — |
| Debian 12 | emacs | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | emacs +2 | No fix yet | — |
| Ubuntu 26.04 LTS | xemacs21 +1 | No fix yet | — |
| Ubuntu 25.10 | emacs +2 | No fix yet | — |
| Ubuntu 24.04 LTS | xemacs21 +1 | No fix yet | — |
| Ubuntu 22.04 LTS | xemacs21 +1 | No fix yet | — |
Show 6 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 26.04 LTS | emacs | 1:30.2+1-2ubuntu1+esm1 | USN-8835-1 |
| Ubuntu Pro 24.04 LTS | emacs | 1:29.3+1-1ubuntu2+esm4 | USN-8835-1 |
| Ubuntu Pro 18.04 LTS | emacs25 | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | emacs | 30.2-8.1 | openSUSE-SU-2026:10619-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | emacs +6 | 1:28.2-3.amzn2023.0.12 | ALAS2023-2026-3195 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | emacs | 29.4-4 | — |
Advisories 4
- ALAS2023-2026-3195 Important: emacs security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 12, 2026
- USN-8835-1 emacs vulnerability Ubuntu Security Notices (USN) · Sep 28, 2026
- WID-SEC-2026-1234 GNU Emacs: Schwachstelle ermöglicht Denial of Service oder die Offenlegung von Informationen BSI CERT-Bund (WID) · Sep 28, 2026
- openSUSE-SU-2026:10619-1 emacs-30.2-8.1 on GA media SUSE / openSUSE Security Updates · Apr 27, 2026
References
- https://access.redhat.com/security/cve/CVE-2026-6861 vdb-entry
- RHBZ#2459992 issue-tracking