AUGUST 4, 2026
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Case File

CVE-2026-40504

CRITICAL · CVSS 9.8 EPSS 0.64% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-04-16 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit arbitrary code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-40504
Severity
CRITICAL
CVSS
9.8
EPSS
0.64%

Original NVD 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.