CVE-2026-1979
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
mruby JMPNOT-to-JMPIF Optimization vm.c mrb_vm_exec use after free
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
mruby
- Vendor
- n/a
- Product
- mruby
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.4.0 | affected | Unavailable | Unavailable | Unavailable | None listed |