CVE-2026-6861 — GNU Emacs Denial of Service
CVE-2026-6861 — 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
What This Means For You
- If your environment is affected by CWE-193, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-6861 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-6861 GNU Emacs SVG CSS Memory Corruption
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-6861 | vulnerability | CVE-2026-6861 |
| CWE-193 | weakness | CWE-193 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 22, 2026 at 17:17 UTC |
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