VULNERABILITY INTELLIGENCE
CVE-2026-40504
CVSS score9.8 CRITICAL
EPSS probability0.64%
CISA KEVNot currently listed
Published2026-04-16
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
Creolabs Gravity before 0.9.6 contains a heap buffer overflow vulnerability in the gravity_vm_exec function that allows attackers to write out-of-bounds memory by crafting scripts with many string literals at global scope. Attackers can exploit insufficient bounds checking in gravity_fiber_reassign() to corrupt heap metadata and achieve arbitrary code execution in applications that evaluate untrusted scripts.
Weakness classification
- disclosure@vulncheck.com: CWE-122