What is CVE-2026-108694?

CVE-2026-108694 is a medium-severity vulnerability in C4illin Convertx, classified under External Control of File Name or Path. CVSS score: 6.5/10. Published 2026-10-11.

How severe is CVE-2026-108694?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in C4illin Convertx

CVE-2026-108694

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.

Published 2026-10-11.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

C4illin Convertx

Weakness classification (CWE)

CWE-73 — External Control of File Name or Path

References

github.com/C4illin/ConvertX/issues/668 (issue-tracking)
github.com/C4illin/ConvertX (product)
github.com/C4illin/ConvertX/blob/710bc7c71712af04198a39f003e3ea1aa5168a31/src/c… (technical-description)
www.vulncheck.com/advisories/convertx-through-0.19.0-arbitrary-file-read-via-pa… (third-party-advisory)

Frequently asked questions

What is CVE-2026-108694?: CVE-2026-108694 is a medium-severity vulnerability in C4illin Convertx, classified under External Control of File Name or Path. CVSS score: 6.5/10. Published 2026-10-11.
How severe is CVE-2026-108694?: Medium severity. CVSS v3 base score is 6.5 out of 10.