Vulnerability in Gumlet Php-Image-Resize
CVE-2026-109398
Gumlet php-image-resize before 3.0.1 contains a denial of service vulnerability because the ImageResize constructor in lib/ImageResize.php passes images to GD imagecreatefrom* functions without pixel limits. Remote attackers can upload small, highly compressed images that decode to large bitmaps, exhausting PHP memory and terminating the worker process.
Published .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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
Weakness classification (CWE)
References
- github.com/gumlet/php-image-resize/security/advisories/GHSA-3g9v-hjrx-mg5h (vendor-advisory)
- github.com/gumlet/php-image-resize/commit/10c1f386e672536d82be0f39b236a80d87767… (patch)
- github.com/gumlet/php-image-resize/commit/cd01c9e8aa2382211d760c825799c8102987a… (patch)
- github.com/gumlet/php-image-resize/blob/3.0.0/lib/ImageResize.php (technical-description)
- github.com/gumlet/php-image-resize/releases/tag/3.0.1 (release-notes)
- www.vulncheck.com/advisories/gumlet-php-image-resize-before-3.0.1-denial-of-ser… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-109398?
- CVE-2026-109398 is a high-severity vulnerability in Gumlet Php-Image-Resize, classified under Improper Handling of Highly Compressed Data (Data Amplification). CVSS score: 7.5/10. Published 2026-10-12.
- How severe is CVE-2026-109398?
- High severity. CVSS v3 base score is 7.5 out of 10.