CVE-2026-44181

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 10.0 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 49% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 10.0Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Jupyter Enterprise Gateway launches remote Jupyter Notebook kernels across distributed clusters like Apache Spark, Kubernetes, and Docker Swarm. In versions 2.0.0rc2 and above, prior to 3.3.0, the environment variables (KERNEL_XXX) used during the rendering of the Kubernetes manifest are vulnerable to Server Side Template Injection (SSTI). By including Jinja2 template expressions it is possible to execution Python code and OS Commands in the Enterprise Gateway service. The code can use or steal the Kubernetes service account token, which can steal Kubernetes secrets and be used to fully compromise the Kubernetes cluster by scheduling a privileged pod or a pod with a hostPath volume mount. This issue has been fixed in version 3.3.0.

CVSS v3
10.0
EG Score
10.0CRITICALmedium confidence
EG Risk
76
EG Risk 76/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity100% × 45%
Exploitation40% × 40%
Automatability100% × 15%
EPSS PROB
0.8%
EPSS %ILE
54th
KEV
Not listed

Published

June 3, 2026

Last Modified

August 5, 2026

Advisory Details (2)

Auto-updated Oct 7, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_release.
githubMentions a patch (unverified)🟡 PoC Available

Jinja2 Template Server Side Template Injection resulting in Remote Code Execution · Advisory · jupyter-server/enterprise_gateway · GitHub

https://github.com/jupyter-server/enterprise_gateway/security/advisories/GHSA-f49j-v924-fx9w
github_release Patch Available

Jupyter Enterprise Gateway 3.3.0

Patch available: jupyter-server/enterprise_gateway v3.3.0

https://github.com/jupyter-server/enterprise_gateway/releases/tag/v3.3.0

Vendor Advisories for CVE-2026-44181(1)

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

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
jupyter-enterprise-gateway2.0.0 ... 3.2.3 (22 versions)
  • 2.0.0rc2 up to 3.3.0: fixed in 3.3.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 24× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 106 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:12 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 15:18 UTCEPSS rescore
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  7. 2026-10-03 12:09 UTCOSV refresh
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  18. 2026-09-14 05:29 UTCEG score recompute
  19. 2026-09-13 16:47 UTCEPSS rescore
  20. 2026-09-12 23:36 UTCOSV refresh
  21. 2026-09-12 15:01 UTCEPSS rescore
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  1. 2026-09-07 16:01 UTCEPSS rescore
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  20. 2026-08-19 17:04 UTCEPSS rescore
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  23. 2026-08-16 15:26 UTCEG score recompute
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  27. 2026-08-15 14:38 UTCEG score recompute
  28. 2026-08-15 01:30 UTCEPSS rescore
  29. 2026-08-13 22:49 UTCEG score recompute
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  31. 2026-08-12 18:09 UTCEG score recompute
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  37. 2026-08-09 17:48 UTCEG score recompute
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  39. 2026-08-08 19:52 UTCEG score recompute
  40. 2026-08-08 16:37 UTCEPSS rescore
  41. 2026-08-07 17:18 UTCEG score recompute
  42. 2026-08-06 14:05 UTCEG score recompute
  43. 2026-08-06 13:46 UTCEPSS rescore
  44. 2026-08-05 20:31 UTCEG score recompute
  45. 2026-08-05 19:17 UTCEPSS rescore
  46. 2026-08-05 16:07 UTCEG score recompute
  47. 2026-08-04 19:17 UTCEG score recompute
  48. 2026-08-04 15:10 UTCEPSS rescore
  49. 2026-08-04 10:38 UTCEPSS rescore
  50. 2026-08-03 15:42 UTCEG score recompute
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  60. 2026-07-28 15:36 UTCEPSS rescore
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  62. 2026-07-27 14:13 UTCEPSS rescore
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  64. 2026-07-26 14:54 UTCEPSS rescore
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  66. 2026-07-25 14:18 UTCEPSS rescore
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  68. 2026-07-23 14:18 UTCEPSS rescore
  69. 2026-07-23 03:14 UTCEG score recompute
  70. 2026-07-22 14:08 UTCEPSS rescore
  71. 2026-07-21 15:24 UTCEPSS rescore
  72. 2026-07-20 17:08 UTCEPSS rescore
  73. 2026-07-19 14:31 UTCEPSS rescore
  74. 2026-07-19 02:29 UTCEPSS rescore
  75. 2026-07-18 10:04 UTCEPSS rescore

Related CVEs(same product + same CWE)

Same product

2 shown

PyPI:jupyter-enterprise-gateway

Frequently asked(5)

What is CVE-2026-44181?
CVE-2026-44181 is a critical vulnerability published on June 3, 2026. Jupyter Enterprise Gateway launches remote Jupyter Notebook kernels across distributed clusters like Apache Spark, Kubernetes, and Docker Swarm. In versions 2.0.0rc2 and above, prior to 3.3.0, the environment variables (KERNEL_XXX) used during the rendering of the Kubernetes manifest are vulnerable…
When was CVE-2026-44181 disclosed?
CVE-2026-44181 was first published on June 3, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44181 actively exploited?
CVE-2026-44181 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (54th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-44181?
CVE-2026-44181 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2026-44181?
A fix for CVE-2026-44181 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-44181 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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