CVE-2022-1106
use after free in mrb_vm_exec in mruby/mruby
use after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
use after free in mrb_vm_exec in mruby/mruby
use after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.
- Record
CVE-2022-1106- CVSS 3.0
- 7.2 High
CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
EUVDEUVD-2022-24449
use after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.
- Record
EUVD-2022-24449- CVSS 3.0
- 7.2 High
CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-r2j8-v967-j6h6
use after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.
use after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.
- Record
GHSA-r2j8-v967-j6h6- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
NVD
use after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.
- Record
CVE-2022-1106- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - CVSS 3.0
- 7.2 High
CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:P - Weakness
- CWE-416
- Updated
- 2026-11-02
OSVALPINE-CVE-2022-1106
use after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.
- Record
ALPINE-CVE-2022-1106- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Updated
- 2026-11-03
OSV
use after free in mrb_vm_exec in mruby/mruby
use after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.
- Record
CVE-2022-1106- CVSS 3.0
- 7.2 High
CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2022-1106
use after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.
- Record
UBUNTU-CVE-2022-1106- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - CVSS 3.0
- 7.2 High
CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mrubyAlpine:v3.17 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.18 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.19 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.20 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.21 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.22 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.23 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.24 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyUbuntu:16.04:LTS |
All versions, plus listed versions 1.1.0+20150817+gita1731254-11.1.0+20150906+git1cbbb7e1-11.2.0+20160315+git4f20d58a-1 |
None known |
mrubyUbuntu:18.04:LTS |
All versions, plus listed versions 1.3.0-11.3.0+20170925+git38185028-11.3.0+20171029+git77edafb0-11.4.0-1 |
None known |
Show 6 moreShow less
| Package | Affected | Fixed |
|---|---|---|
mrubyUbuntu:20.04:LTS |
All versions, plus listed versions 2.0.0-1 |
None known |
mrubyUbuntu:22.04:LTS |
All versions, plus listed versions 2.1.2-33.0.0-13.0.0-3 |
None known |
mrubyUbuntu:24.04:LTS |
All versions, plus listed versions 3.2.0-13.2.0-2 |
None known |
mrubyUbuntu:25.10 |
All versions, plus listed versions 3.3.0-1 |
None known |
mrubyUbuntu:26.10 |
All versions, plus listed versions 3.4.0-23.4.0-34.0.0-1 |
None known |
mrubyUbuntu:26.04:LTS |
All versions, plus listed versions 3.3.0-13.4.0-2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, facts, references | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-1106 is a high vulnerability (CVSS 7.2) in Mruby, published March 27, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.97%, the 62nd percentile. Fixed in mruby 3.1.0-r0.
References
huntr.dev/bounties/16b9d0ea-71ed-41bc-8a88-2deb4c20be8f
github.com/mruby/mruby/commit/7f5a490d09f4d56801ac3a3e4e39e03e1471b44c
nvd.nist.gov/vuln/detail/CVE-2022-1106
security.alpinelinux.org/vuln/CVE-2022-1106
ubuntu.com/security/CVE-2022-1106
cve.org/CVERecord?id=CVE-2022-1106