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A flaw was found in nano. A local user could exploit a format string vulnerability in the `statusline()` function. By creating a directory with a name containing `printf` specifiers, the application attempts to display this name, leading to a segmentation fault (SEGV). This results in a Denial of Service (DoS) for the `nano` application.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade nano | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Apr 13, 2026 |
| Ubuntu | — | Upgrade nano (Ubuntu Pro)Upgrade nanoUpgrade nano-tinyUpgrade nano-tiny (Ubuntu Pro) | Jun 7, 2026 | Jun 4, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jun 22, 2026 | Apr 22, 2026 |
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