Vulnerability DatabaseCVE-2026-0969
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CVE-2026-0969
February 12, 2026
The serialize function used to compile MDX in next-mdx-remote is vulnerable to arbitrary code execution due to insufficient sanitization of MDX content. This vulnerability, CVE-2026-0969, is fixed in next-mdx-remote 6.0.0.
Affected Packages
https://github.com/hashicorp/next-mdx-remote.git (GITHUB):
Affected version(s) >=v4.3.0 <v6.0.0
Fix Suggestion:
Update to version v6.0.0
next-mdx-remote (NPM):
Affected version(s) >=4.3.0 <6.0.0
Fix Suggestion:
Update to version 6.0.0
Related Resources (5)
https://github.com/hashicorp/next-mdx-remote/releases/tag/v6.0.0
https://nvd.nist.gov/vuln/detail/CVE-2026-0969
https://discuss.hashicorp.com/t/hcsec-2026-01-arbitrary-code-execution-in-react-server-side-rendering-of-untrusted-mdx-content/77155
https://github.com/hashicorp/next-mdx-remote/commit/4d527fdcaed911b87f427d0b4d3c711e817fa4b3
https://github.com/hashicorp/next-mdx-remote
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Control of Generation of Code ('Code Injection')
CWE-94
EPSS
Base Score:
0.08