CVE-2026-1979
Medium · 5.3CVSS
5.3
EPSS
0.2%
Published
Feb 6, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-112108 A vulnerability was determined in ztxz16 fastllm up to 0.1.8.2. CWE-119
- CVE-2026-112073 A vulnerability was identified in Tencent ncnn up to 44b02dabdcf97499281a4692ebd65bad73dc… CWE-119
- CVE-2026-90831 A vulnerability was detected in GNU Binutils 2.47. CWE-119
- CVE-2026-90804 A vulnerability was detected in GNU Binutils 2.47. CWE-119
- CVE-2026-90803 A security vulnerability has been detected in GNU Binutils 2.47. CWE-119
- CVE-2026-90801 A security flaw has been discovered in GNU Binutils 2.47. CWE-119
- CVE-2026-87933 A vulnerability was found in DaveGamble cJSON up to 1.7.19. CWE-119
- CVE-2026-87931 A vulnerability has been found in Behavioral Technology Group Pavlok Behavioral… CWE-119