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TI-2026-17799 Aliases CVE-2026-22189GHSA-gwg6-62mc-7h63

Panda3D <= 1.10.16 egg-mkfont Stack Buffer Overflow

Priority MEDIUM 64CWE-121Published · 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-121 and the CVSS impact.

Summary

The egg-mkfont utility in Panda3D versions up to and including 1.10.16 contains a stack-based buffer overflow vulnerability due to use of an unbounded sprintf() call with attacker-controlled input. When constructing glyph filenames, egg-mkfont formats a user-supplied glyph pattern (-gp) into a fixed-size stack buffer without length validation. Supplying an excessively long glyph pattern string can overflow the stack buffer, resulting in memory corruption and a deterministic crash. Depending on build configuration and execution environment, the overflow may also be exploitable for arbitrary code execution.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00519 44th 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-2026-22189
  2. 2026-10-03 Alias added: GHSA-gwg6-62mc-7h63

References

Exploit 1

Other 2

  • TI-2026-17798 Panda3D <= 1.10.16 Deploy-Stub Stack Exhaustion via Unbounded alloca() 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