CVE-2026-44182 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-44182CRITICAL

jupyter-server enterprise_gateway — Jupyter Enterprise Gateway Has Kubernetes Manifest Injection via Jinja2 Template Rendering

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   H   H   H   10.0   .0050   40.7     —

AFFECTED
  Product             Versions   Fixed
  enterprise_gateway  < 3.3.0 –  —

TIMELINE
  May 5   Reserved by GitHub_M
  Jul 16  EXPLOIT PUBLISHED — CVE-2026-44182 (jupyter-server enterprise_gateway). Public exploit reference added.
  Jul 16  Published (CNA: GitHub_M)

CWE-74 · CNA: GitHub_M · CVSS v4.0 · 2 references · NVD status: Analyzed

Description

Jupyter Enterprise Gateway launches remote Jupyter Notebook kernels across distributed clusters like Apache Spark, Kubernetes, and Docker Swarm. In versions prior to 3.3.0, the server interpolates untrusted environment variables (e.g., KERNEL_XXX) into Kubernetes manifests without YAML-aware escaping, enabling YAML injection attacks. Attackers can inject new fields, overwrite critical fields (e.g., duplicate securityContext keys, where the last one prevails), and inject document boundaries (--- for new documents, ... for end-of-document) to generate multiple resources, potentially creating arbitrary types, such as privileged pods. The Jinja2 template for the Kubernetes manifest contains several kernel_xxx variables, such as kernel_working_dir that are used when rendering the manifest and are all vectors for YAML injection. This issue has been fixed in version 3.3.0.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 5, 2026	Reserved	Reserved by GitHub_M
July 16, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-44182 (jupyter-server enterprise_gateway). Public exploit reference added.
July 16, 2026	Published	Published (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
jupyter-server	enterprise_gateway	—	< 3.3.0	—

Weaknesses

CWE-74

References (2)

https://github.com/jupyter-server/enterprise_gateway/releases/tag/v3.3.0 [Product, Release Notes]
https://github.com/jupyter-server/enterprise_gateway/security/advisories/GHSA-cfw7-6c5v-2wjq [Exploit, Vendor Advisory]

Authoritative record: CVE-2026-44182 at cve.org

Vendors: jupyter-server

Weaknesses: CWE-74

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-44182 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.