CVE-2026-38976

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Source
https://cve.org/CVERecord?id=CVE-2026-38976
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-38976.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-38976
Published
2026-07-06T00:00:00Z
Modified
2026-08-12T16:23:56Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

mrubyc through 3.4.1 was found to contain a NULL pointer dereference in src/vm.c in op_super() / OP_SUPER due to a missing runtime guard for top-level super.

Database specific 
{
    "cna_assigner": "mitre",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/38xxx/CVE-2026-38976.json"
}
References

Affected packages

Git / github.com/hayat01sh1da/mrubyc

Affected ranges

Type
GIT
Repo
https://github.com/hayat01sh1da/mrubyc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c4aa2a06bfdd13a0f1ae5165c5760a2530314a42
Database specific
Show details 
{
    "source": "REFERENCES"
}
Type
GIT
Repo
https://github.com/mrubyc/mrubyc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6782f50de4b7bf60ca3756ffd4287f8258b03fa0
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.4.1"
        }
    ],
    "source": "DESCRIPTION"
}

Affected versions

Other
beta3
beta4
release1.*
release1.0
release1.1
release1.1RC2
release1.2
release2.*
release2.0
release2.1
release3.*
release3.1
release3.2
release3.2-beta1
release3.2-rc1
release3.3
release3.3.1
release3.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-38976.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "300393377631693970406548525635047979871",
                "266833567745543915087981810537007569053",
                "280835670526691372506485693391848490313",
                "327787395166955751882804344819657239464"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-38976-55d0349f",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/hayat01sh1da/mrubyc/commit/c4aa2a06bfdd13a0f1ae5165c5760a2530314a42",
        "target": {
            "file": "src/vm.c"
        }
    }
]
vanir_signatures_modified 
"2026-08-12T16:23:56Z"