CVE-2026-44007

CRITICALPre-NVD 9.19.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This critical-severity CVE scores 9.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 1.0% (61st percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-30077 (ENISA EUVD)Source: ENISA EUVD

9.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 1.0%CVSS: 9.1Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.1, when a NodeVM is created with nesting: true, sandbox code can unconditionally require('vm2') regardless of the outer VM's require configuration — including require: false. With access to vm2, the sandbox constructs a new inner NodeVM with its own unrestricted require settings and executes arbitrary OS commands on the host. Any application that runs untrusted code inside a NodeVM with nesting: true is fully compromised. This vulnerability is fixed in 3.11.1.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
57
EG Risk 57/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
1.0%
EPSS %ILE
61st
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
1.0% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 13, 2026

Last Modified

October 26, 2026

Advisory Details (6)

Auto-updated Sep 15, 2026
Patch available. Sources: github, redhat.
Red HatMentions a patch (unverified)
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44007.json
Red Hat

2477198 – (CVE-2026-44007) CVE-2026-44007 vm2: vm2: Arbitrary code execution via nested NodeVM bypass

https://bugzilla.redhat.com/show_bug.cgi?id=2477198
Red HatMentions a patch (unverified)

CVE-2026-44007 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-44007
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:50850
Web page

oss-security - vm2: sandbox escape in NodeVM with nesting:true (CVE-2026-44007)

http://www.openwall.com/lists/oss-security/2026/05/05/11
GitHub advisoryMentions a patch (unverified)

nesting: true bypasses require: false, allowing sandbox escape to arbitrary OS command execution · Advisory · patriksimek/vm2 · GitHub

https://github.com/patriksimek/vm2/security/advisories/GHSA-8hg8-63c5-gwmx

Vendor Advisories for CVE-2026-44007(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatansible-automation-platform/automation-portal:17858542262026-08-05redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
vm2—
  • every version up to 3.11.1: fixed in 3.11.1
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 23× in last 7d / 72× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 288 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 188 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-30 11:13 UTCEG score recompute
  2. 2026-10-30 11:13 UTCVendor advisory
  3. 2026-10-29 16:33 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  4. 2026-10-29 12:56 UTCEG score recompute
  5. 2026-10-29 12:56 UTCVendor advisory
  6. 2026-10-28 16:32 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  7. 2026-10-28 14:38 UTCEG score recompute
  8. 2026-10-28 14:38 UTCVendor advisory
  9. 2026-10-27 16:32 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  10. 2026-10-27 15:50 UTCVendor advisory
  11. 2026-10-26 17:29 UTCEG score recompute
  12. 2026-10-26 17:29 UTCVendor advisory
  13. 2026-10-26 16:31 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  14. 2026-10-25 20:32 UTCEG score recompute
  15. 2026-10-25 20:32 UTCVendor advisory
  16. 2026-10-25 16:33 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  17. 2026-10-25 14:28 UTCEG score recompute
  18. 2026-10-24 22:14 UTCEG score recompute
  19. 2026-10-24 22:14 UTCVendor advisory
  20. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  21. 2026-10-23 23:53 UTCEG score recompute
  22. 2026-10-23 23:53 UTCVendor advisory
  23. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  24. 2026-10-23 01:32 UTCEG score recompute
  25. 2026-10-23 01:32 UTCVendor advisory
Show 75 more
  1. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  2. 2026-10-22 02:52 UTCEG score recompute
  3. 2026-10-22 02:52 UTCVendor advisory
  4. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  5. 2026-10-21 04:34 UTCEG score recompute
  6. 2026-10-21 04:34 UTCVendor advisory
  7. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  8. 2026-10-20 06:16 UTCEG score recompute
  9. 2026-10-20 06:16 UTCVendor advisory
  10. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  11. 2026-10-19 07:57 UTCEG score recompute
  12. 2026-10-19 07:57 UTCVendor advisory
  13. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  14. 2026-10-18 09:37 UTCVendor advisory
  15. 2026-10-18 03:39 UTCEG score recompute
  16. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  17. 2026-10-17 11:15 UTCEG score recompute
  18. 2026-10-17 11:15 UTCVendor advisory
  19. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  20. 2026-10-16 12:55 UTCEG score recompute
  21. 2026-10-16 12:55 UTCVendor advisory
  22. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  23. 2026-10-15 14:35 UTCEG score recompute
  24. 2026-10-15 14:35 UTCVendor advisory
  25. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  26. 2026-10-14 09:10 UTCEG score recompute
  27. 2026-10-14 09:10 UTCVendor advisory
  28. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  29. 2026-10-13 06:13 UTCEG score recompute
  30. 2026-10-13 06:13 UTCVendor advisory
  31. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  32. 2026-10-12 16:05 UTCEG score recompute
  33. 2026-10-12 07:52 UTCVendor advisory
  34. 2026-10-11 19:47 UTCEG score recompute
  35. 2026-10-11 17:02 UTCEG score recompute
  36. 2026-10-11 14:27 UTCEG score recompute
  37. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  38. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  39. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  40. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  41. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  42. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  43. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  44. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  45. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  46. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  47. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  48. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  49. 2026-09-27 04:45 UTCOSV refresh
  50. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  51. 2026-09-23 17:53 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  52. 2026-09-20 20:15 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  53. 2026-09-18 19:28 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  54. 2026-09-17 19:31 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  55. 2026-09-16 14:08 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  56. 2026-09-16 05:15 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  57. 2026-09-13 16:47 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  58. 2026-09-12 15:01 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  59. 2026-09-11 14:53 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  60. 2026-09-11 09:37 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  61. 2026-09-10 09:34 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  62. 2026-09-08 22:00 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  63. 2026-09-07 16:01 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  64. 2026-09-07 13:54 UTCEG score recompute
  65. 2026-09-07 13:54 UTCVendor advisory
  66. 2026-09-07 12:44 UTCEG score recompute
  67. 2026-09-07 12:44 UTCVendor advisory
  68. 2026-09-06 13:47 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  69. 2026-09-04 13:29 UTCEG score recompute
  70. 2026-09-04 13:29 UTCVendor advisory
  71. 2026-09-04 12:22 UTCEG score recompute
  72. 2026-09-04 12:22 UTCVendor advisory
  73. 2026-09-04 05:06 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  74. 2026-09-02 14:12 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  75. 2026-09-01 13:54 UTCEPSS rescoreEPSS 1.0% · 59th percentile

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-44007?
CVE-2026-44007 is a critical-severity vulnerability; its CVE record was published on May 13, 2026. vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.1, when a NodeVM is created with nesting: true, sandbox code can unconditionally require('vm2') regardless of the outer VM's require configuration — including require: false. With access to vm2, the sandbox constructs a new inner NodeVM…
When was the CVE record for CVE-2026-44007 published?
The CVE record for CVE-2026-44007 was published on May 13, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 26, 2026; the record at its source may have been updated since.
Is CVE-2026-44007 actively exploited?
CVE-2026-44007 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.0% probability of exploitation in the next 30 days (61st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-44007?
CVE-2026-44007 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-44007?
A fix for CVE-2026-44007 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-44007 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-44007

Explore →

Is Your Infrastructure Affected by CVE-2026-44007?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs