CVE-2026-26956: patriksimek vm2 · Protection Mechanism Failure
Affects patriksimek vm2Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical · fixed in 3.10.5 : patch patriksimek vm2 as a priority.
Data as of 1 Nov 2026, 22:58 UTC
- EPSS
- 1.0% chance of exploitation in 30 days – higher than 65% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.10.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 4 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| patriksimekvm2 | Affected
| Fixed in– |
npmvm2pkg:npm/vm2Other threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade vm2 to version 3.10.5 or later, where this vulnerability is patched. No other mitigations are indicated by the vendor advisory. Patch status is confirmed by the Red Hat advisory linked in the source data.
Description
vm2 is an open source vm/sandbox for Node.js. In version 3.10.4, vm2 is vulnerable to full sandbox escape with arbitrary code execution. Attacker code inside VM.run() obtains host process object and runs host commands with zero host cooperation. This issue has been patched in version 3.10.5.
References
- github.com/patriksimek/vm2/security/advisories/GHSA-ffh4-j6h5-pg66 (opens in a new tab)
- github.com/patriksimek/vm2/releases/tag/v3.10.5 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-26956 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2466548 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26956.json (opens in a new tab)