What’s Vulnerable › Vulnerabilities

CVE-2026-38976

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-06 · updated 2026-07-07
• Weakness: CWE-476

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

• https://github.com/hayat01sh1da/mrubyc/commit/c4aa2a06bfdd13a0f1ae5165c5760a2530314a42
• https://github.com/mrubyc/mrubyc
• https://github.com/mrubyc/mrubyc/issues/276
• https://github.com/mrubyc/mrubyc/issues/276

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