Improper Control of Generation of Code ('Code Injection') in mdx-mermaid
Priority HIGH 67CWE-94Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-94.
Summary
mdx-mermaid provides plug and play access to Mermaid in MDX. There is a potential for an arbitrary javascript injection in versions less than 1.3.0 and 2.0.0-rc1. Modify any mermaid code blocks with arbitrary code and it will execute when the component is loaded by MDXjs. This vulnerability was patched in version(s) 1.3.0 and 2.0.0-rc2. There are currently no known workarounds.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00398 34th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed mdx-mermaid (sjwall): 1.3.0mdx-mermaid (npm): 1.3.0, 2.0.0-rc2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| sjwall | mdx-mermaid | before 1.3.0; = 2.0.0-rc1 | 1.3.0 | Patch available | CNA |
| — | mdx-mermaid (npm) | before 1.3.0 | 1.3.0 | Patch available | GHSA-rvgm-35jw-q628 |
| — | mdx-mermaid (npm) | 2.0.0-rc1 to before 2.0.0-rc2 | 2.0.0-rc2 | Patch available | GHSA-rvgm-35jw-q628 |
- mdx-mermaid Vendorsjwall Affected before 1.3.0; = 2.0.0-rc1 Fixed in 1.3.0 Patch available CNA
- mdx-mermaid (npm) Vendor— Affected before 1.3.0 Fixed in 1.3.0 Patch available GHSA-rvgm-35jw-q628
- mdx-mermaid (npm) Vendor— Affected 2.0.0-rc1 to before 2.0.0-rc2 Fixed in 2.0.0-rc2 Patch available GHSA-rvgm-35jw-q628
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mdx-mermaid_project:mdx-mermaid:*:*:*:*:*:node.js:*:* | 0.0.1 to before 1.3.0 | Vulnerable | Mdx-mermaid Project |
| cpe:2.3:a:mdx-mermaid_project:mdx-mermaid:2.0.0:rc1:*:*:*:node.js:*:* | 2.0.0 rc1 | Vulnerable | Mdx-mermaid Project |
- cpe:2.3:a:mdx-mermaid_project:mdx-mermaid:*:*:*:*:*:node.js:*:* Versions 0.0.1 to before 1.3.0 Vulnerable ·Mdx-mermaid Project
- cpe:2.3:a:mdx-mermaid_project:mdx-mermaid:2.0.0:rc1:*:*:*:node.js:*:* Versions 2.0.0 rc1 Vulnerable ·Mdx-mermaid Project
Remediation
- Fix · CNA mdx-mermaid (sjwall) Fixed in 1.3.0
- Fix · GHSA-rvgm-35jw-q628 mdx-mermaid (npm) Fixed in 1.3.0 Advisory →
- Fix · GHSA-rvgm-35jw-q628 mdx-mermaid (npm) Fixed in 2.0.0-rc2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-36036
- 2026-10-03 Alias added: GHSA-rvgm-35jw-q628
References
Sources
- CVE-2022-36036 · CVE Program
- CVE-2022-36036 · NVD
- FIRST EPSS
- GHSA-rvgm-35jw-q628 · GitHub Advisory Database · CC BY 4.0
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