CVE-2026-38976

HIGH

mrubyc < 3.4.2 - NULL Pointer Dereference in OP_SUPER via Missing Top-Level Super Guard

Title source: llm
STIX 2.1

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.

References (3)

Core 3

Scores

CVSS v3 7.5
EPSS 0.0034
EPSS Percentile 25.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-476
Status published
Published Jul 06, 2026
Tracked Since Jul 07, 2026