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TI-2026-17798 Aliases CVE-2026-22188GHSA-xvxx-4fr3-55xv

Panda3D <= 1.10.16 Deploy-Stub Stack Exhaustion via Unbounded alloca()

Priority MEDIUM 64CWE-457Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-457 and the CVSS impact.

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 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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00208 11th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Panda3DPanda3Dup to 1.10.16—No fix listedCNA
  • Panda3D VendorPanda3D Affected up to 1.10.16 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cmu:panda3d:*:*:*:*:*:*:*:*up to 1.10.16VulnerablePanda3D
  • cpe:2.3:a:cmu:panda3d:*:*:*:*:*:*:*:* Versions up to 1.10.16 Vulnerable ·Panda3D

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-22188
  2. 2026-10-03 Alias added: GHSA-xvxx-4fr3-55xv

References

Exploit 1

Other 2

  • TI-2026-17799 Panda3D <= 1.10.16 egg-mkfont Stack Buffer Overflow CVSS 4.0MEDIUM 6.9
  • TI-2026-17800 Panda3D <= 1.10.16 egg-mkfont Format String Information Disclosure CVSS 4.0MEDIUM 5.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences