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.
History

Thu, 16 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 16 Apr 2026 09:30:00 +0000

Type Values Removed Values Added
First Time appeared Marcobambini
Marcobambini gravity
Vendors & Products Marcobambini
Marcobambini gravity

Thu, 16 Apr 2026 01:45:00 +0000

Type Values Removed Values Added
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.
Title Creolabs Gravity < 0.9.6 Heap Buffer Overflow via gravity_vm_exec
Weaknesses CWE-122
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-04-16T01:10:27.364Z

Updated: 2026-04-16T13:45:35.255Z

Reserved: 2026-04-13T20:29:02.808Z

Link: CVE-2026-40504

cve-icon Vulnrichment

Updated: 2026-04-16T13:45:05.634Z

cve-icon NVD

Status : Received

Published: 2026-04-16T02:16:11.693

Modified: 2026-04-16T02:16:11.693

Link: CVE-2026-40504

cve-icon Redhat

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