What is CVE-2026-33206?

CVE-2026-33206 is a medium-severity vulnerability in Calibre-ebook Calibre, classified under Relative Path Traversal. CVSS score: 6.3/10. Published 2026-03-27.

How severe is CVE-2026-33206?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Path Traversal in Calibre-ebook Calibre

CVE-2026-33206

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.6.0, a path traversal vulnerability exists in Calibre' handling of images in Markdown and other similar text-based file…

EPSS: 0.002 (11.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N.

Affected products

Calibre-ebook Calibre
Kovidgoyal Calibre — versions < 9.6.0

Weakness classification (CWE)

CWE-23 — Relative Path Traversal

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-33206?: CVE-2026-33206 is a medium-severity vulnerability in Calibre-ebook Calibre, classified under Relative Path Traversal. CVSS score: 6.3/10. Published 2026-03-27.
How severe is CVE-2026-33206?: Medium severity. CVSS v3 base score is 6.3 out of 10.