CVE-2026-40504
9.3
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
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| marcobambini | gravity | 0 < 0.9.6 | affected |
| marcobambini | gravity | 0 < 18b9195598d9b944376754c6d1ad76e38a4adca1 | affected |
Weaknesses
- CWE-122: CWE-122 Heap-based Buffer Overflow
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: total
References
- https://github.com/marcobambini/gravity/releases/tag/0.9.6
- https://github.com/marcobambini/gravity/issues/437
- https://github.com/marcobambini/gravity/commit/18b9195598d9b944376754c6d1ad76e38a4adca1
- https://www.vulncheck.com/advisories/creolabs-gravity-heap-buffer-overflow-via-gravity-vm-exec
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