CVE-2026-45411
High
High exploit probability or critical severity with a known exploit.
CVSS base
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.6%
45.6th percentile
CISA KEV
Not listed
Weakness / dates
CWE-237
Published 2026-05-13 · modified 2026-09-07
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2026-05-13 — Published (NVD)
- 2026-09-07 — Last modified (NVD)
Description
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.3, it is possible to catch a host exception using the yield* expression inside an async generator. When the generator is closed using the return function, the value is awaited on and exceptions thrown in the then call will be caught by the runtime and passed to the yield* iterator as the next value. This allows attackers to write code which can escape from the VM2 sandbox and execute arbitrary commands on the host system. This vulnerability is fixed in 3.11.3.
Affected
References
- exploit https://github.com/patriksimek/vm2/security/advisories/GHSA-248r-7h7q-cr24
- https://access.redhat.com/errata/RHSA-2026:50850
- https://access.redhat.com/security/cve/CVE-2026-45411
- https://bugzilla.redhat.com/show_bug.cgi?id=2477210
- exploit https://github.com/patriksimek/vm2/security/advisories/GHSA-248r-7h7q-cr24
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45411.json