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CVE-2024-39700

31
FAUCET Score

CVE-2024-39700 is a critical Remote Code Execution (RCE) vulnerability affecting JupyterLab extensions created using the JupyterLab extension template with the 'test' option. Specifically, the 'update-integration-tests.yml' workflow in these repositories contains the flaw. With a CVSS score of 9.8 (Critical), this vulnerability allows unauthenticated attackers to execute arbitrary code remotely with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. While there are no known public exploits or Metasploit modules, the vulnerability has garnered some community discussion, indicating awareness among developers. Users are strongly advised to upgrade their templates, disable GitHub Actions temporarily during the upgrade, and rebase untrusted pull requests.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.3.0CPE matchmatch criteria
cpe:2.3:a:jupyter:jupyterlab:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.9CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.1
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.02%
Probability of exploitation in next 30 days
EPSS Percentile
60.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0102 is in the 45th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / jupyterlab/extension-template/commit/035e78c1c65bcedee97c95bb683abe59c96bc4e6
Patch
github.com / jupyterlab/extension-template/security/advisories/GHSA-45gq-v5wm-82wg
ExploitVendor Advisory