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Debian Kitty Serious Code Execution Vulnerability DSA-6423

Linuxsecurity •LinuxSecurity Advisories • August 9, 2026

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For the stable distribution (trixie), these problems have been fixed in version 0.41.1-2+deb13u2. We recommend that you upgrade your kitty packages. For the detailed security status of kitty please refer to its security tracker page at: Further information Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at:

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Debian and Ubuntu Security Updates Address Privilege Escalation Vulnerabilities Recent security advisories from Debian and Ubuntu address critical privilege escalation vulnerabilities in their respective systems. For Debian's oldstable distribution (bookworm), vulnerabilities in lxd were patched in version 5.0.2-5+deb12u4, while the stable distribution (trixie) received updates in version 5.0.2+git20231211.1364ae4-9+deb13u4. Similarly, Ubuntu's oldstable distribution (bookworm) fixed vulnerabilities in inetutils with version 2:2.4-2+deb12u3, and the stable distribution (trixie) updated to version 2:2.6-3+deb13u3. These updates are crucial for maintaining system integrity and preventing unauthorized privilege escalation. Users are advised to upgrade their packages promptly to mitigate potential risks. The advisories highlight the importance of regular updates in safeguarding systems against exploitation. 97 sources 58

Extracted Entities

Debian Kitty Serious Code Execution Vulnerability DSA-6423

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Companies (1)

CWE Weaknesses (1)

Platforms (1)