CVE-2026-11623
MediumCVSS 4.5Exploitation Probability (EPSS)
Low risk2th percentile - higher than 2% of all known CVEs
Summary
A vulnerability has been detected in tmux up to version 3.6a, affecting the image_free function in image.c, leading to use after free. Local access is required, and the attack is characterized by high complexity.
Risk Assessment
This vulnerability may lead to unauthorized access to the system, posing a serious security threat to the organization.
Recommendation
It is recommended to upgrade to version 3.7-rc to address this vulnerability. The patch named fc6d94a9f8a593bd8b7031650802084385d4ee03 should also be applied.
Original NVD description (English source)
A security vulnerability has been detected in tmux up to 3.6a. Affected is the function image_free of the file image.c. Such manipulation leads to use after free. Local access is required to approach this attack. This attack is characterized by high complexity. The exploitability is told to be difficult. The exploit has been disclosed publicly and may be used. Upgrading to version 3.7-rc is able to address this issue. The name of the patch is fc6d94a9f8a593bd8b7031650802084385d4ee03. The affected component should be upgraded.