{"id":"CVE-2026-22188","title":"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","summary":"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 di…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-457","CWE-789","CWE-908"],"vendor":"cmu","product":"panda3d","affected":["panda3d <= 1.10.16"],"published":"2026-01-07","updated":"2026-07-14","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-22188","references":[{"url":"https://github.com/panda3d/panda3d","label":"disclosure@vulncheck.com"},{"url":"https://seclists.org/fulldisclosure/2026/Jan/9","label":"disclosure@vulncheck.com"},{"url":"https://www.panda3d.org/","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/panda3d-deploy-stub-stack-exhaustion-via-unbounded-alloca","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"epss":0.00204,"epssPercentile":0.10645,"ingestedAt":"2026-07-15T13:44:03.801Z","slug":"CVE-2026-22188","body":"## Overview\n\nThe 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.\n\n## Affected\n\n- `panda3d <= 1.10.16`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}