CVE-2026-22190

Panda3D <= 1.10.16 egg-mkfont Format String Information Disclosure

The egg-mkfont utility in Panda3D versions up to and including 1.10.16 contains an uncontrolled format string vulnerability. The -gp (glyph pattern) command-line option is used directly as the format string for sprintf() with only a single argument supplied. If an attacker provides additional format specifiers, egg-mkfont may read unintended stack values and write the formatted output into generated .egg and .png files, resulting in disclosure of stack-resident memory and pointer values.

Affected

Panda3D

CVSS v4.0 VULNCHECK

5.1 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.37% chance of exploitation in the next 30 days, 30th percentile

Published

2026-01-07

Updated

2026-07-14

Proof-of-concept exploits (1)

• https://seclists.org/fulldisclosure/2026/Jan/11

Security advisories

• https://www.vulncheck.com/advisories/panda3d-egg-mkfont-format-string-information-disclos…
• panda3d/panda3d
• https://www.panda3d.org

References

• CVE Record
• NVD entry