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CVE-2026-38976

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hayato Ishida mruby/c是日本Hayato Ishida个人开发者的一个 mruby VM 的另一种实现方式。 Hayato Ishida mruby/c 3.4.1及之前版本存在安全漏洞，该漏洞源于src/vm.c文件中op_super() / OP_SUPER缺少顶级super的运行时保护，容易出现空指针取消引用。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.61% · P47

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a n/a n/a affected
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I. Basic Information for CVE-2026-38976

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Hayato Ishida mruby/c 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hayato Ishida mruby/c是日本Hayato Ishida个人开发者的一个 mruby VM 的另一种实现方式。 Hayato Ishida mruby/c 3.4.1及之前版本存在安全漏洞，该漏洞源于src/vm.c文件中op_super() / OP_SUPER缺少顶级super的运行时保护，容易出现空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2026-38976

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-38976

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Patches & Fixes for CVE-2026-38976 (1)

Proof of Concept for CVE-2026-38976 (1)

Other References for CVE-2026-38976 (1)

Same Patch Batch · n/a · 2026-07-06 · 8 CVEs total

CVE-2026-14792 6.5 MEDIUM Formbricks Survey actions.ts access control
CVE-2025-15668 3.3 LOW GPAC MP4Box box_code_base.c sgpd_del_entry heap-based overflow
CVE-2025-15667 3.3 LOW GPAC MP4Box avc_ext.c gf_isom_nalu_sample_rewrite double free
CVE-2026-14801 3.3 LOW GPAC TeXML File load_text.c txtin_probe_duration divide by zero
CVE-2026-14790 3.3 LOW GPAC Media File write_nhml.c nhmldump_send_frame null pointer dereference
CVE-2026-38973 Hayato Ishida mruby/c 安全漏洞
CVE-2026-38979 Ajenti Project Ajenti 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2026-38976

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