CVE-2026-22189

Panda3D versions up to and including 1.10.16 egg-mkfont contains a stack-based buffer overflow vulnerability due to use of an unbounded sprintf() call with attacker-controlled input. When constructing glyph filenames, egg-mkfont formats a user-supplied glyph pattern (-gp) into a fixed-size stack buffer without length validation. Supplying an excessively long glyph pattern string can overflow the stack buffer, resulting in memory corruption and a deterministic crash. Depending on build configuration and execution environment, the overflow may also be exploitable for arbitrary code execution.

The following products are affected by CVE-2026-22189 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-22189.

URL	Resource
https://github.com/panda3d/panda3d
https://seclists.org/fulldisclosure/2026/Jan/10
https://www.panda3d.org/
https://www.vulncheck.com/advisories/panda3d-egg-mkfont-stack-buffer-overflow