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CVE Vulnerability Details :
CVE-2026-0969
PUBLISHED
More InfoOfficial Page
Assigner-HashiCorp
Assigner Org ID-67fedba0-ff2e-4543-ba5b-aa93e87718cc
View Known Exploited Vulnerability (KEV) details
Published At-12 Feb, 2026 | 01:35
Updated At-12 Feb, 2026 | 15:35
Rejected At-
▼CVE Numbering Authority (CNA)
Arbitrary code execution in React server-side rendering of untrusted MDX content

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 Products
Vendor
HashiCorp, Inc.HashiCorp
Product
Shared library
Repo
https://github.com/hashicorp/next-mdx-remote
Platforms
  • 64 bit
  • 32 bit
  • x86
  • ARM
  • MacOS
  • Windows
  • Linux
Default Status
unaffected
Versions
Affected
  • From 4.3.0 before 6.0.0 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-94CWE-94: Improper Control of Generation of Code (Code Injection)
Type: CWE
CWE ID: CWE-94
Description: CWE-94: Improper Control of Generation of Code (Code Injection)
Metrics
VersionBase scoreBase severityVector
3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-242CAPEC-242: Code Injection
CAPEC ID: CAPEC-242
Description: CAPEC-242: Code Injection
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://discuss.hashicorp.com/t/hcsec-2026-01-arbitrary-code-execution-in-react-server-side-rendering-of-untrusted-mdx-content/77155
N/A
Hyperlink: https://discuss.hashicorp.com/t/hcsec-2026-01-arbitrary-code-execution-in-react-server-side-rendering-of-untrusted-mdx-content/77155
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found