Medium severity5.5OSV Advisory· Published Jan 7, 2026· Updated Jul 14, 2026
CVE-2026-22188
CVE-2026-22188
Description
The deploy-stub component in Panda3D versions up to and including 1.10.16 contains a denial of service vulnerability due to unbounded stack allocation. The deploy-stub executable allocates argv_copy and argv_copy2 using alloca() based directly on the attacker-controlled argc value without validation. Supplying a large number of command-line arguments can exhaust stack space and propagate uninitialized stack memory into Python interpreter initialization, resulting in a reliable crash and undefined behavior.
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Affected products
3Patches
Vulnerability mechanics
References
3- seclists.org/fulldisclosure/2026/Jan/9nvdExploitMailing ListThird Party Advisory
- www.vulncheck.com/advisories/panda3d-deploy-stub-stack-exhaustion-via-unbounded-allocanvdThird Party Advisory
- www.panda3d.orgnvdProduct
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