Nixpkgs security tracker

Permalink CVE-2026-75149

8.7 HIGH

CVSS version (CVSS): 4.0
Attack Vector (AV): Network (N)
Attack Complexity (AC): Low (L)
Attack Requirement (AT): None (N)
Privileges Required (PR): None (N)
User Interaction (UI): Passive (P)
Vulnerable System Impact Confidentiality (VC): High (H)
Vulnerable System Impact Integrity (VI): High (H)
Vulnerable System Impact Availability (VA): High (H)
Subsequent System Impact Confidentiality (SC): None (N)
Subsequent System Impact Integrity (SI): None (N)
Subsequent System Impact Availability (SA): None (N)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): Low (L)
Modified Attack Requirement (MAT): None (N)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): Passive (P)
Modified Vulnerable System Impact Confidentiality (MVC): High (H)
Modified Vulnerable System Impact Integrity (MVI): High (H)
Modified Vulnerable System Impact Availability (MVA): High (H)
Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
Modified Subsequent System Impact Integrity (MSI): Negligible (N)
Modified Subsequent System Impact Availability (MSA): Negligible (N)
Safety (S): Not Defined (X)
Automatable (AU): Not Defined (X)
Recovery (R): Not Defined (X)
Value Density (V): Not Defined (X)
Vulnerability Response Effort (RE): Not Defined (X)
Provider Urgency (U): Not Defined (X)
Confidentiality Req. (CR): Not Defined (X)
Integrity Req. (IR): Not Defined (X)
Availability Req. (AR): Not Defined (X)
Exploit Maturity (E): Not Defined (X)

created 3 weeks, 5 days ago Activity log

Created suggestion 3 weeks, 5 days ago

marimo < 0.23.15 Code Injection via MCP Server Configuration

marimo before 0.23.15 contains a code injection vulnerability in the notebook configuration handler that allows attackers to execute arbitrary commands by supplying a crafted MCP server entry with an attacker-controlled command value embedded in a notebook. When the notebook is opened in edit mode, marimo launches the specified command as a local subprocess before any notebook cell is executed, requiring no authentication or cell execution to trigger the vulnerability.

References

Release Notes
Pull Request
Patch Commit patch
https://www.vulncheck.com/advisories/marimo-code-injection-via-mcp-server-confi… third-party-advisory

Affected products

marimo

<0.23.15

Matching in nixpkgs

pkgs.marimo

Reactive Python notebook that's reproducible, git-friendly, and deployable as scripts or apps

nixos-unstable 0.23.10
- nixpkgs-unstable 0.23.10
- nixos-unstable-small 0.23.16
nixos-26.05 0.23.10
- nixos-26.05-small 0.23.10
- nixpkgs-26.05-darwin 0.23.10

pkgs.python313Packages.marimo

Reactive Python notebook that's reproducible, git-friendly, and deployable as scripts or apps

nixos-unstable 0.23.10
- nixpkgs-unstable 0.23.10
- nixos-unstable-small 0.23.16
nixos-26.05 0.23.10
- nixos-26.05-small 0.23.10
- nixpkgs-26.05-darwin 0.23.10

pkgs.python314Packages.marimo

Reactive Python notebook that's reproducible, git-friendly, and deployable as scripts or apps

nixos-unstable 0.23.10
- nixpkgs-unstable 0.23.10
- nixos-unstable-small 0.23.16
nixos-26.05 0.23.10
- nixos-26.05-small 0.23.10
- nixpkgs-26.05-darwin 0.23.10

Package maintainers

@dmadisetti Dylan Madisetti <nix@madisetti.me>
@akshayka Akshay Agrawal

Permalink CVE-2026-39987

created 5 months ago Activity log

Created suggestion 5 months ago

marimo Affected by Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

marimo is a reactive Python notebook. Prior to 0.23.0, Marimo has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSocket endpoints (e.g., /ws) that correctly call validate_auth() for authentication, the /terminal/ws endpoint only checks the running mode and platform support before accepting connections, completely skipping authentication verification. This vulnerability is fixed in 0.23.0.