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CVE

CVE-2026-40504

Creolabs Gravity < 0.9.6 Heap Buffer Overflow via gravity_vm_exec
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CVE

CVE-2026-40504

Creolabs Gravity < 0.9.6 Heap Buffer Overflow via gravity_vm_exec

Creolabs Gravity before 0.9.6 contains a heap buffer overflow vulnerability in the gravityvmexec 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 gravityfiberreassign() to corrupt heap metadata and achieve arbitrary code execution in applications that evaluate untrusted scripts.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.3
-
4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40504.json, https://github.com/marcobambini/gravity/releases/tag/0.9.6, https://nvd.nist.gov/vuln/detail/CVE-2026-40504, https://www.vulncheck.com/advisories/creolabs-gravity-heap-buffer-overflow-via-gravity-vm-exec, https://github.com/marcobambini/gravity/issues/437, https://github.com/marcobambini/gravity/commit/18b9195598d9b944376754c6d1ad76e38a4adca1, https://github.com/marcobambini/gravity

Severity

0

CVSS Score
0
10

Basic Information

Base CVSS
0
EPSS Probability
0.0064%
EPSS Percentile
0.48056%
Introduced Version
0
Fix Available
18b9195598d9b944376754c6d1ad76e38a4adca1

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