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Emacs Vulnerability Leads to Potential DoS and Information Exposure

Emacs Vulnerability Leads to Potential DoS and Information Exposure

First seen 29 Sep 2026, 21:04 UTC • •

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ThreatCluster AI
ThreatCluster •September 29, 2026 at 21:05 UTC
  • •Emacs vulnerability allows potential DoS and information exposure.
  • •Affected versions include Ubuntu 26.04 LTS and 24.04 LTS.
  • •Users should update their systems to mitigate risks.

A vulnerability in Emacs, identified as USN-8835-1, allows attackers to crash the application or expose sensitive information by opening specially crafted SVG files. The flaw stems from improper handling of these files, leading to memory corruption. Affected systems include Ubuntu 26.04 LTS and 24.04 LTS versions of Emacs. Users are advised to update their systems to mitigate the risk. The vulnerability has been confirmed by multiple sources, including Ubuntu and Linuxsecurity. A standard system update is recommended to apply necessary changes. The vulnerability is associated with CVE-2026, although specific CVE details were not provided in the articles. No active exploitation has been reported as of now.

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Timeline

2026-09-28
Ubuntu Security Notice USN-8835-1 released
Ubuntu disclosed a vulnerability in Emacs related to memory corruption from SVG files, urging users to update their systems.
Ubuntu
2026-09-29
Linuxsecurity reports on Emacs vulnerability
Linuxsecurity confirmed the Emacs vulnerability and provided details on affected versions and recommended updates.
Linuxsecurity

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