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CVE-2018-7206

28
FAUCET Score

CVE-2018-7206 describes a critical access control bypass vulnerability in Project Jupyter JupyterHub OAuthenticator versions 0.6.x prior to 0.6.2 and 0.7.x prior to 0.7.3. Specifically, when GitLab group whitelisting was enabled for access control, the system failed to correctly verify group membership, allowing unauthorized users to create accounts on the JupyterHub instance. This vulnerability carries a high CVSS score of 8.8, indicating a severe risk. It can be exploited remotely with low attack complexity and low privileges, potentially leading to high impact on confidentiality, integrity, and availability, as unauthorized users could gain access to the platform. Despite its high severity, there is currently no evidence of active exploitation, nor are there any publicly available exploit codes in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are also minimal, suggesting a low level of public awareness or attention.

Impacted Technologies

VendorProductVersion(s)CPE
0.6.0CPE matchmatch criteria
cpe:2.3:a:jupyter:oauthenticator:0.6.0:*:*:*:*:*:*:*
0.6.1CPE matchmatch criteria
cpe:2.3:a:jupyter:oauthenticator:0.6.1:*:*:*:*:*:*:*
0.7.0CPE matchmatch criteria
cpe:2.3:a:jupyter:oauthenticator:0.7.0:*:*:*:*:*:*:*
0.7.1CPE matchmatch criteria
cpe:2.3:a:jupyter:oauthenticator:0.7.1:*:*:*:*:*:*:*
0.7.2CPE matchmatch criteria
cpe:2.3:a:jupyter:oauthenticator:0.7.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.79%
Probability of exploitation in next 30 days
EPSS Percentile
76.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0179 is in the 74th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: oauthenticatorFixed in: 0.6.2
pippatch availablevia ghsa
Product: oauthenticatorFixed in: 0.7.3

Vendor Advisories (1)

pipGHSA-8x3m-m3x9-54fjhigh

JupyterHub OAuthenticator elevation of privilege

May 13, 2022

References

blog.jupyter.org / security-fix-for-jupyterhub-gitlab-oauthenticator-7b14571d1f76
Third Party Advisory
github.com / jupyterhub/oauthenticator/blob/8499dc2/CHANGELOG.md
Release NotesVendor Advisory
github.com / jupyterhub/oauthenticator/commit/1845c0e4b1bff3462c91c3108c85205acd3c75a2
Patch