CVE-2026-0969

HIGH
2026-02-12 [email protected] GHSA-g4xw-jxrg-5f6m
8.8
CVSS 3.1
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CVSS Vector

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
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 22:02 vuln.today
CVE Published
Feb 12, 2026 - 03:15 nvd
HIGH 8.8

Tags

RCE Code Injection

Description

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.

Analysis

Authenticated attackers can execute arbitrary code through next-mdx-remote's MDX compiler due to inadequate input validation in the serialization function, affecting applications processing untrusted MDX content. An authenticated user with access to compile MDX can inject and execute malicious code with full system privileges. …

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Remediation

Within 24 hours: Audit all systems using next-mdx-remote to identify versions and deployment scope; restrict MDX content processing to trusted sources only. Within 7 days: Implement input validation and sanitization controls; deploy network segmentation to limit blast radius if compromise occurs. …

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Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +44
POC: 0

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CVE-2026-0969 vulnerability details – vuln.today
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