CVE-2026-44001
vm2: Sandbox Escape via Promise Constructor Unhandled Rejection (Process Crash DoS)
Reported by github_m · Published May 13, 2026
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, a sandbox escape vulnerability in vm2 v3.10.5 allows any sandboxed code to crash the host Node.js process via a single Promise constructor that triggers an unhandled rejection propagating to the host. The fix for CVE-2026-22709 (v3.10.2) only sanitized the onRejected callback in .then() and .catch() overrides and did not address the executor-to-unhandledRejection path. This vulnerability is fixed in 3.11.0.
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| patriksimek | vm2 | < 3.11.0 |
| patriksimek | vm2 | 0 |
| npm | vm2 | 0 |
| Red Hat | Red Hat Developer Hub | |
| Red Hat | Self-service automation portal 2 | |
| Red Hat | Red Hat Developer Hub | |
| Red Hat | Red Hat Ansible Automation Platform 2.1 | 1785854226 |
| Red Hat | Self-service automation portal 2 |
Timeline
- May 8, 2026 Security Advisory (3 in total, the first dated here)
- May 13, 2026 CVE Published
- May 18, 2026 EPSS Score (30 in total, the first dated here)
- Aug 5, 2026 CVE Updated
- Aug 7, 2026 Coalition ESS Score
- Aug 11, 2026 Distribution Patch (2 in total, the first dated here)
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2026-44001
vulnetix vdb fixes CVE-2026-44001Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-44001/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-hw58-p9xv-2mjh x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-44001 advisory
- https://github.com/advisories/GHSA-hw58-p9xv-2mjh advisory
- https://github.com/advisories/GHSA-99p7-6v5w-7xg8 advisory
- https://github.com/patriksimek/vm2/releases/tag/v3.11.0 url
- https://access.redhat.com/security/cve/CVE-2026-44001 vdb
- RHBZ#2477208 issue
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44001.json url
- https://access.redhat.com/errata/RHSA-2026:50850 vendor-advisory
- https://github.com/patriksimek/vm2 url