MR
Product
mruby
by Mruby · last CVE Aug 19, 2026
43
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 17High 17Medium 9Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2022-1286
9.8
1%
Apr 10
heap-buffer-overflow in mrb_vm_exec in mruby/mruby in GitHub repository mruby/mruby prior to 3.2
Affected: before 3.2
CVE-2022-1276
9.8
2%
Apr 10
Out-of-bounds Read in mrb_get_args in GitHub repository mruby/mruby prior to 3.2
Affected: before 3.2
CVE-2022-1212
9.8
2%
Apr 5
Use-After-Free in str_escape in mruby/mruby in GitHub repository mruby/mruby prior to 3.2
Affected: through 3.0.0; 3.1.0; 3.1.0
CVE-2022-0631
9.8
1%
Feb 18
Heap-based Buffer Overflow in Homebrew mruby prior to 3.2
Affected: before 3.2
CVE-2022-0570
9.8
1%
Feb 14
Heap-based Buffer Overflow in Homebrew mruby prior to 3.2
Affected: through 3.1
CVE-2022-0080
9.8
2%
Jan 2
mruby is vulnerable to Heap-based Buffer Overflow
Affected: through 3.0.0
CVE-2020-15866
9.8
2%
Jul 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
Affected: through 2.1.1; 2.1.2
CVE-2020-6840
9.8
2%
Jan 11
In mruby 2.1.0, there is a use-after-free in hash_slice in mrbgems/mruby-hash-ext/src/hash-ext.c
Affected: 2.1.0
CVE-2020-6839
9.8
1%
Jan 11
In mruby 2.1.0, there is a stack-based buffer overflow in mrb_str_len_to_dbl in string.c
Affected: 2.1.0
CVE-2020-6838
9.8
2%
Jan 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
Affected: 2.1.0
CVE-2018-11743
9.8
2%
Jun 5
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_hash_keys…
Affected: 1.4.1
CVE-2018-10199
9.8
2%
Apr 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()
Affected: through 1.4.0
CVE-2018-10191
9.8
3%
Apr 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 nesting, resulting in…
Affected: through 1.4.0
CVE-2022-1106
9.1
1%
Mar 27
use after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2
Affected: through 3.1
CVE-2022-0717
9.1
1%
Feb 23
Out-of-bounds Read in GitHub repository mruby/mruby prior to 3.2
Affected: through 3.1
CVE-2022-0623
9.1
2%
Feb 17
Out-of-bounds Read in Homebrew mruby prior to 3.2
Affected: before 3.2
CVE-2022-0525
9.1
1%
Feb 9
Out-of-bounds Read in Homebrew mruby prior to 3.2
Affected: through 3.1
CVE-2022-1071
8.2
1%
Mar 26
User after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2
Affected: through 3.1
CVE-2025-12875
7.8
0%
Nov 7
mruby array.c ary_fill_exec out-of-bounds write
Affected: 3.4.0
CVE-2022-1934
7.8
0%
May 31
Use After Free in GitHub repository mruby/mruby prior to 3.2
Affected: before 3.2
CVE-2022-1427
7.8
0%
Apr 23
Out-of-bounds Read in mrb_obj_is_kind_of in in GitHub repository mruby/mruby prior to 3.2
Affected: before 3.2
CVE-2020-36401
7.8
1%
Jul 1
mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free)
Affected: 2.1.2
CVE-2017-9527
7.8
1%
Jun 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) or possibly have…
Affected: through 1.2.0
CVE-2021-46023
7.5
1%
Feb 14
An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3.1.0-rc
Affected: before 3.1.0
CVE-2022-0481
7.5
1%
Feb 4
NULL Pointer Dereference in Homebrew mruby prior to 3.2
Affected: before 3.2
CVE-2022-0240
7.5
1%
Jan 17
mruby is vulnerable to NULL Pointer Dereference
Affected: before 3.2
CVE-2021-46020
7.5
1%
Jan 14
An untrusted pointer dereference in mrb_vm_exec() of mruby v3.0.0 can lead to a segmentation fault or application crash
Affected: 3.0.0
CVE-2021-4188
7.5
1%
Dec 30
mruby is vulnerable to NULL Pointer Dereference
Affected: through 3.0.0
CVE-2021-4110
7.5
2%
Dec 15
mruby is vulnerable to NULL Pointer Dereference
Affected: before 3.1
CVE-2018-14337
7.5
1%
Jul 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 because the…
Affected: 1.4.1
CVE-2018-12249
7.5
2%
Jun 12
An issue was discovered in mruby 1.4.1
Affected: 1.4.1
CVE-2018-12248
7.5
1%
Jun 12
An issue was discovered in mruby 1.4.1
Affected: 1.4.1
CVE-2018-12247
7.5
1%
Jun 12
An issue was discovered in mruby 1.4.1
Affected: 1.4.1
CVE-2022-0630
7.1
1%
Feb 19
Out-of-bounds Read in Homebrew mruby prior to 3.2
Affected: before 3.2
CVE-2022-1201
6.5
0%
Apr 2
NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2
Affected: before 3.2
CVE-2026-1979
5.5
0%
Feb 6
mruby JMPNOT-to-JMPIF Optimization vm.c mrb_vm_exec use after free
Affected: 3.0; 3.1; 3.2; 3.3; 3.4.0
CVE-2025-13120
5.5
0%
Nov 13
mruby array.c sort_cmp use after free
Affected: 3.0; 3.1; 3.2; 3.3; 3.4.0
CVE-2025-7207
5.5
0%
Jul 9
mruby nregs codegen.c scope_new heap-based overflow
Affected: before 3.4.0; 3.4.0; 3.4.0
CVE-2022-0890
5.5
1%
Mar 10
NULL Pointer Dereference in GitHub repository mruby/mruby prior to 3.2
Affected: before 3.2
CVE-2022-0632
5.5
1%
Feb 19
NULL Pointer Dereference in Homebrew mruby prior to 3.2
Affected: before 3.2
CVE-2022-0614
5.5
1%
Feb 16
Use of Out-of-range Pointer Offset in Homebrew mruby prior to 3.2
Affected: before 3.2
CVE-2022-0326
5.5
1%
Jan 21
NULL Pointer Dereference in Homebrew mruby prior to 3.2
Affected: before 3.2
CVE-2022-4996
5.3
1%
Aug 19
mruby bigint.c udiv floating point comparison with incorrect operator
Affected: 3.1.0
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