What is CVE-2026-116149?

CVE-2026-116149 is a high-severity vulnerability in Imagemagick, classified under Stack-based Buffer Overflow. CVSS score: 8.1/10. Published 2026-10-25.

How severe is CVE-2026-116149?

High severity. CVSS v3 base score is 8.1 out of 10.

Buffer overflow in Imagemagick

CVE-2026-116149

ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 contains a stack-based buffer overflow in the handling of bzip2 compressed images. Attackers can supply a crafted image using bzip2 compression to overwrite stack memory during decoding, causing crashes or memory corruption.

Vulnerability class: Buffer Overflow

Published 2026-10-25.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

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-121 — Stack-based Buffer Overflow

References

github.com/ImageMagick/ImageMagick/security/advisories/GHSA-pwpf-8799-94cj (vendor-advisory)
www.vulncheck.com/advisories/imagemagick-before-6.9.13-58-and-7-x-before-7.1.2-… (third-party-advisory)

Frequently asked questions

What is CVE-2026-116149?: CVE-2026-116149 is a high-severity vulnerability in Imagemagick, classified under Stack-based Buffer Overflow. CVSS score: 8.1/10. Published 2026-10-25.
How severe is CVE-2026-116149?: High severity. CVSS v3 base score is 8.1 out of 10.