CVE-2026-40504

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Source
https://cve.org/CVERecord?id=CVE-2026-40504
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40504.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-40504
Published
2026-04-16T01:10:27Z
Modified
2026-08-12T03:51:23Z
Severity
  • 9.3 (Critical) CVSS_V4 - 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 CVSS Calculator
Summary
Creolabs Gravity < 0.9.6 Heap Buffer Overflow via gravity_vm_exec
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-122"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40504.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "fixed": "18b9195598d9b944376754c6d1ad76e38a4adca1"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/marcobambini/gravity

Affected ranges

Type
GIT
Repo
https://github.com/marcobambini/gravity
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
93930acf9a79576c99fc8bb4d3ddbc1cd79622f3
Fixed
18b9195598d9b944376754c6d1ad76e38a4adca1
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.9.6"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.2.8
0.3.0
0.3.5
0.3.6
0.3.7
0.3.8
0.4.0
0.4.1
0.4.2
0.4.3
0.4.4
0.4.5
0.4.7
0.4.8
0.4.9
0.5.0
0.5.1
0.5.4
0.5.5
0.5.6
0.5.8
0.5.9
0.6.0
0.6.1
0.6.3
0.6.4
0.6.5
0.6.6
0.6.7
0.6.9
0.7.0
0.7.4
0.7.5
0.7.6
0.7.7
0.7.8
0.7.9
0.8.0
0.8.1
0.8.2
0.8.3
0.8.4
0.8.5
0.9.0
v0.*
v0.9.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40504.json"