CVE-2026-111057
Published:October 19, 2026
Updated:October 20, 2026
Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. From 3.0.0 until 3.2.4, a missing comma in BLOCKED_PATTERNS concatenates the /lab and /api/terminals regular-expression literals. Requests to /api/terminals therefore bypass the anonymous endpoint blocklist and reach Jupyter Server's terminal API. An unauthenticated attacker can use the resulting interactive operating-system shell to execute commands and access data available to the Mercury process. This issue is fixed in version 3.2.4.
Affected Packages
https://github.com/mljar/mercury.git (GITHUB):
Affected version(s) >=v3.0.0 <v3.2.4Fix Suggestion:
Update to version v3.2.4mercury (PYTHON):
Affected version(s) >=3.0.0 <3.2.4Fix Suggestion:
Update to version 3.2.4mercury (PYTHON):
Affected version(s) >=3.0.0a12 <3.2.4Fix Suggestion:
Update to version 3.2.4Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
10
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
10
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
EPSS
Base Score:
0.44