CVE-2026-1979
Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-119
Restricción de operaciones inapropiada dentro de los límites del búfer de la memoria
Fecha de publicación:
06/02/2026
Última modificación:
06/02/2026
Descripción
*** Pendiente de traducción *** 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.
Impacto
Puntuación base 4.0
4.80
Gravedad 4.0
MEDIA
Puntuación base 3.x
5.30
Gravedad 3.x
MEDIA
Puntuación base 2.0
4.30
Gravedad 2.0
MEDIA
Referencias a soluciones, herramientas e información
- https://github.com/mruby/mruby/
- https://github.com/mruby/mruby/issues/6701
- https://github.com/mruby/mruby/issues/6701#issue-3802609843
- https://github.com/sysfce2/mruby/commit/e50f15c1c6e131fa7934355eb02b8173b13df415
- https://vuldb.com/?ctiid_344501=
- https://vuldb.com/?id_344501=
- https://vuldb.com/?submit_743377=



