CVE-2026-1979 | Medium | 5.3 | 2026-02-06 | 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… |
CVE-2025-13120 | Medium | 5.3 | 2025-11-13 | A vulnerability has been found in mruby up to 3.4.0. This vulnerability affects the function sort_cmp of the file src/array.c. Such manipulation leads to use a… |
CVE-2025-12875 | Medium | 5.3 | 2025-11-07 | A weakness has been identified in mruby 3.4.0. This vulnerability affects the function ary_fill_exec of the file mrbgems/mruby-array-ext/src/array.c. Executing… |
CVE-2025-7207 | Low | 3.3 | 2025-07-09 | A vulnerability, which was classified as problematic, was found in mruby up to 3.4.0-rc2. Affected is the function scope_new of the file mrbgems/mruby-compiler… |
CVE-2021-46023 | High | 7.5 | 2023-02-14 | An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3.1.0-rc. The vulnerability causes a segmentation fault and application… |
CVE-2022-1934 | High | 7.8 | 2022-05-31 | Use After Free in GitHub repository mruby/mruby prior to 3.2. |
CVE-2022-1427 | High | 7.8 | 2022-04-23 | Out-of-bounds Read in mrb_obj_is_kind_of in in GitHub repository mruby/mruby prior to 3.2. # Impact: Possible arbitrary code execution if being exploited. |
CVE-2022-1286 | Critical | 9.8 | 2022-04-10 | heap-buffer-overflow in mrb_vm_exec in mruby/mruby in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited. |
CVE-2022-1276 | Critical | 9.8 | 2022-04-10 | Out-of-bounds Read in mrb_get_args in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited. |
CVE-2022-1212 | Critical | 9.8 | 2022-04-05 | Use-After-Free in str_escape in mruby/mruby in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited. |
CVE-2022-1201 | Medium | 6.5 | 2022-04-02 | NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter… |
CVE-2022-1106 | Critical | 9.1 | 2022-03-27 | use after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2. |
CVE-2022-1071 | High | 8.2 | 2022-03-26 | User after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2. |
CVE-2022-0890 | Medium | 5.5 | 2022-03-10 | NULL Pointer Dereference in GitHub repository mruby/mruby prior to 3.2. |
CVE-2022-0717 | Critical | 9.1 | 2022-02-23 | Out-of-bounds Read in GitHub repository mruby/mruby prior to 3.2. |
CVE-2022-0632 | Medium | 5.5 | 2022-02-19 | NULL Pointer Dereference in Homebrew mruby prior to 3.2. |
CVE-2022-0630 | High | 7.1 | 2022-02-19 | Out-of-bounds Read in Homebrew mruby prior to 3.2. |
CVE-2022-0631 | Critical | 9.8 | 2022-02-18 | Heap-based Buffer Overflow in Homebrew mruby prior to 3.2. |
CVE-2022-0623 | Critical | 9.1 | 2022-02-17 | Out-of-bounds Read in Homebrew mruby prior to 3.2. |
CVE-2022-0614 | Medium | 5.5 | 2022-02-16 | Use of Out-of-range Pointer Offset in Homebrew mruby prior to 3.2. |
CVE-2022-0570 | Critical | 9.8 | 2022-02-14 | Heap-based Buffer Overflow in Homebrew mruby prior to 3.2. |
CVE-2022-0525 | Critical | 9.1 | 2022-02-09 | Out-of-bounds Read in Homebrew mruby prior to 3.2. |
CVE-2022-0481 | High | 7.5 | 2022-02-04 | NULL Pointer Dereference in Homebrew mruby prior to 3.2. |
CVE-2022-0326 | Medium | 5.5 | 2022-01-21 | NULL Pointer Dereference in Homebrew mruby prior to 3.2. |
CVE-2022-0240 | High | 7.5 | 2022-01-17 | mruby is vulnerable to NULL Pointer Dereference |
CVE-2021-46020 | High | 7.5 | 2022-01-14 | An untrusted pointer dereference in mrb_vm_exec() of mruby v3.0.0 can lead to a segmentation fault or application crash. |
CVE-2022-0080 | Critical | 9.8 | 2022-01-02 | mruby is vulnerable to Heap-based Buffer Overflow |
CVE-2021-4188 | High | 7.5 | 2021-12-30 | mruby is vulnerable to NULL Pointer Dereference |
CVE-2021-4110 | High | 7.5 | 2021-12-15 | mruby is vulnerable to NULL Pointer Dereference |
CVE-2020-36401 | High | 7.8 | 2021-07-01 | mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free). |
CVE-2020-15866 | Critical | 9.8 | 2020-07-21 | mruby through 2.1.2-rc has a heap-based buffer overflow in the mrb_yield_with_class function in vm.c because of incorrect VM stack handling. It can be triggere… |
CVE-2020-6840 | Critical | 9.8 | 2020-01-11 | In mruby 2.1.0, there is a use-after-free in hash_slice in mrbgems/mruby-hash-ext/src/hash-ext.c. |
CVE-2020-6839 | Critical | 9.8 | 2020-01-11 | In mruby 2.1.0, there is a stack-based buffer overflow in mrb_str_len_to_dbl in string.c. |
CVE-2020-6838 | Critical | 9.8 | 2020-01-11 | In mruby 2.1.0, there is a use-after-free in hash_values_at in mrbgems/mruby-hash-ext/src/hash-ext.c. |
CVE-2018-14337 | High | 7.5 | 2018-07-17 | The CHECK macro in mrbgems/mruby-sprintf/src/sprintf.c in mruby 1.4.1 contains a signed integer overflow, possibly leading to out-of-bounds memory access becau… |
CVE-2018-12249 | High | 7.5 | 2018-06-12 | An issue was discovered in mruby 1.4.1. There is a NULL pointer dereference in mrb_class_real because "class BasicObject" is not properly supported in class.c. |
CVE-2018-12248 | High | 7.5 | 2018-06-12 | An issue was discovered in mruby 1.4.1. There is a heap-based buffer over-read associated with OP_ENTER because mrbgems/mruby-fiber/src/fiber.c does not extend… |
CVE-2018-12247 | High | 7.5 | 2018-06-12 | An issue was discovered in mruby 1.4.1. There is a NULL pointer dereference in mrb_class, related to certain .clone usage, because mrb_obj_clone in kernel.c co… |
CVE-2018-11743 | Critical | 9.8 | 2018-06-05 | The init_copy function in kernel.c in mruby 1.4.1 makes initialize_copy calls for TT_ICLASS objects, which allows attackers to cause a denial of service (mrb_h… |
CVE-2018-10199 | Critical | 9.8 | 2018-04-18 | In versions of mruby up to and including 1.4.0, a use-after-free vulnerability exists in src/io.c::File#initilialize_copy(). An attacker that can cause Ruby co… |
CVE-2018-10191 | Critical | 9.8 | 2018-04-17 | In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrb_vm_exec() when handling OP_GETUPVAR in the presence of deep scope n… |
CVE-2017-9527 | High | 7.8 | 2017-06-11 | The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial of service (heap-based use-after-free and application crash)… |