Vulnerability · Published Oct 12, 2026 · Assigned by VulnCheck
CVE-2026-109398Gumlet php-image-resize before 3.0.1 Denial of Service via Decompression Bombs
High 7.5
In plain English
A high-severity security flaw in php-image-resize from gumlet. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 54.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| gumlet | php-image-resize | 0 – before 3.0.1 |
Weakness: CWE-409 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- GitHub Security Advisory (GHSA-3g9v-hjrx-mg5h) vendor-advisory
- https://github.com/gumlet/php-image-resize/commit/10c1f386e672536d82be0f39b236a80d87767a50 patch
- https://github.com/gumlet/php-image-resize/commit/cd01c9e8aa2382211d760c825799c8102987a8c2 patch
- https://github.com/gumlet/php-image-resize/blob/3.0.0/lib/ImageResize.php#L122-L163 technical-description
- php-image-resize 3.0.1 Release Notes release-notes
- VulnCheck Advisory: Gumlet php-image-resize before 3.0.1 Denial of Service via Decompression Bombs third-party-advisory