{"id":"CVE-2026-22188","state":"PUBLISHED","title":"Panda3D <= 1.10.16 Deploy-Stub Stack Exhaustion via Unbounded alloca()","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.","publishedAt":"2026-01-07T20:26:13.360Z","updatedAt":"2026-07-14T15:53:10.906Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["Panda3D Panda3D"],"affected":[{"vendor":"Panda3D","product":"Panda3D","packageURL":"pkg:github/panda3d/panda3d","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.10.16","versionType":"semver"}],"repo":"https://github.com/panda3d/panda3d"}],"references":["https://seclists.org/fulldisclosure/2026/Jan/9","https://www.panda3d.org/","https://github.com/panda3d/panda3d","https://www.vulncheck.com/advisories/panda3d-deploy-stub-stack-exhaustion-via-unbounded-alloca"],"weaknesses":["CWE-457","CWE-789"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/22xxx/CVE-2026-22188.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-22188","state":"PUBLISHED","datePublished":"2026-01-07T20:26:13.360Z","dateUpdated":"2026-07-14T15:53:10.906Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-01-06T16:47:17.183Z"},"containers":{"cna":{"title":"Panda3D <= 1.10.16 Deploy-Stub Stack Exhaustion via Unbounded alloca()","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Panda3D","product":"Panda3D","packageURL":"pkg:github/panda3d/panda3d","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.10.16","versionType":"semver"}],"repo":"https://github.com/panda3d/panda3d"}],"references":[{"url":"https://seclists.org/fulldisclosure/2026/Jan/9","tags":["technical-description","exploit"]},{"url":"https://www.panda3d.org/","tags":["product"]},{"url":"https://github.com/panda3d/panda3d","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/panda3d-deploy-stub-stack-exhaustion-via-unbounded-alloca","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-457","description":"CWE-457 Use of Uninitialized Variable","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-789","description":"CWE-789 Memory Allocation with Excessive Size Value","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-07-14T15:53:10.906Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:cmu:panda3d:*:*:*:*:*:*:*:*","versionEndIncluding":"1.10.16"}]}]}],"credits":[{"lang":"en","type":"finder","value":"Ron Edgerson"}],"x_generator":{"engine":"Vulnogram 0.5.0"},"source":{"discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-07T21:23:03.715506Z","id":"CVE-2026-22188","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-07T21:23:15.544Z"}}]}}}