CVE-2026-38973

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Source
https://cve.org/CVERecord?id=CVE-2026-38973
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-38973.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-38973
Published
2026-07-06T00:00:00Z
Modified
2026-10-20T11:51:40Z
Severity
  • 4.4 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L CVSS Calculator
Summary
[none]
Details

mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbc_find_method().

Database specific 
{
    "cna_assigner":  "mitre",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/38xxx/CVE-2026-38973.json"
}
References

Affected packages

Git / github.com/mrubyc/mrubyc

Affected ranges

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":  "release3.4.1"
        },
        {
            "range":  [
                {
                    "fixed":  "f83a8b67ca1c7c62ac0dd548a363d79f767c4e30"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ],
    "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-2026-38973.json"