Panda3d
CVE-2026-22188
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Variable initialization checks
|
| Impact | CVSS 5.5 (MEDIUM). Attack vector: Local. Complexity: Low. Privileges required: Low. User interaction: None. Public exploit/POC available. |
| Exploit ScenarioDerived | An attacker could exploit this flaw, a reliable crash and undefined behavior. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Panda3D's deploy-stub executable up to version 1.10.16 is vulnerable to denial of service through unvalidated stack allocation based on command-line argument counts, allowing local attackers to crash the application by supplying excessive arguments. Public exploit code exists for this vulnerability, and no patch is currently available. The flaw can trigger reliable crashes and undefined behavior during Python interpreter initialization.
Earlier versions of this analysis (1)
Panda3D versions up to and including 1.10.16 deploy-stub 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. [CVSS 5.5 MEDIUM]
RemediationAI
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Affects your stack
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Technical ContextAI · show details
Affects Panda3D. Panda3D versions up to and including 1.10.16 deploy-stub 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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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
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
Primary rating from Vendor (vulncheck) · only source for this CVE.
CVSS VectorVendor: vulncheck
Lifecycle Timeline
3DescriptionCVE.org
Panda3D versions up to and including 1.10.16 deploy-stub 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.
Executive ViewAI
Organizations using Panda3D versions up to and including 1.10.16 deploy-stub should be aware of moderate risk from CVE-2026-22188 rated CVSS 5.5. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)CVE.org
Panda3D egg-mkfont (through 1.10.16) has a stack buffer overflow via an unbounded sprintf() with attacker-controlled gly
Panda3D egg-mkfont up to version 1.10.16 contains a format string vulnerability in the -gp command-line option that allo
Exploit-DB