CVE-2026-1979

Katalog CVE

CVSS 5.5 · Medium EPSS 0,18%

Kerentanan Improper Restriction of Operations within the Bounds of a Memory Buffer pada mruby. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

A flaw has been found in mruby up to 3.4.0. This affects the function mrb_vm_exec of the file src/vm.c of the component JMPNOT-to-JMPIF Optimization. Executing a manipulation can lead to use after free. The attack needs to be launched locally. The exploit has been published and may be used. This patch is called e50f15c1c6e131fa7934355eb02b8173b13df415. It is advisable to implement a patch to correct this issue.

Rincian

Terbit di NVD

6 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-416: Use After Free

EPSS (30 hari)

0,18% peluang dieksploitasi; lebih tinggi dari 6,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/sysfce2/mruby/commit/e50f15c1c6e131fa7934355eb02b8173b13df415 patch
• https://vuldb.com/?id.344501 advisory pihak ketiga · vdb entry
• https://vuldb.com/?submit.743377 advisory pihak ketiga · vdb entry
• https://github.com/mruby/mruby/issues/6701 exploit · issue tracking
• https://github.com/mruby/mruby/issues/6701#issue-3802609843 exploit · issue tracking
• https://github.com/mruby/mruby/ product
• https://vuldb.com/?ctiid.344501 permissions required · vdb entry