CVE-2026-22188

Name: CVE-2026-22188
Creator: NVD / NIST
Published: 2026-01-07T21:16:02.747+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.9/10EPSS 0.17%

Last modified Jun 17, 2026

CVE-2026-22188 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. 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. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

6.9/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.17%

7.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cmu	Panda3d	<= 1.10.16

References

https://github.com/panda3d/panda3dProduct
https://seclists.org/fulldisclosure/2026/Jan/9Exploit, Mailing List, Third Party Advisory
https://www.panda3d.org/Product
https://www.vulncheck.com/advisories/panda3d-deploy-stub-stack-exhaustion-via-unbounded-allocaThird Party Advisory

Timeline

Published: Jan 7, 2026
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2026-22188?

How severe is CVE-2026-22188?

CVE-2026-22188 has a CVSS score of 6.9/10 (MEDIUM severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.

How do I fix CVE-2026-22188?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-22188?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST