Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cmu | Panda3D | <= 1.10.16 |
Related Weaknesses (CWE)
References
- https://github.com/panda3d/panda3dProduct
- https://seclists.org/fulldisclosure/2026/Jan/10ExploitMailing ListThird Party Advisory
- https://www.panda3d.org/Product
- https://www.vulncheck.com/advisories/panda3d-egg-mkfont-stack-buffer-overflowThird Party Advisory
FAQ
What is CVE-2026-22189?
CVE-2026-22189 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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...
How severe is CVE-2026-22189?
CVE-2026-22189 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-22189?
Check the references section above for vendor advisories and patch information. Affected products include: Cmu Panda3D.