What is CVE-2026-105399?

CVE-2026-105399 is a medium-severity vulnerability in Imagemagick, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-10-08.

How severe is CVE-2026-105399?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Resource exhaustion in Imagemagick

CVE-2026-105399

ImageMagick before 6.9.13-56 and 7.x before 7.1.2-31 contains a denial of service vulnerability in the MVG decoder caused by a missing limit check. Attackers can supply a crafted MVG image that triggers a long-running decoding operation, consuming excessive CPU resources and stalling image processing.

Vulnerability class: DoS (Denial of Service)

Published 2026-10-08 · last modified 2026-10-08.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

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

Imagemagick

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

github.com/ImageMagick/ImageMagick/security/advisories/GHSA-qr53-hc3p-fc62 (vendor-advisory)
www.vulncheck.com/advisories/imagemagick-before-7.1.2-31-denial-of-service-via-… (third-party-advisory)

Frequently asked questions

What is CVE-2026-105399?: CVE-2026-105399 is a medium-severity vulnerability in Imagemagick, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-10-08.
How severe is CVE-2026-105399?: Medium severity. CVSS v3 base score is 5.3 out of 10.