CVE-2026-109398: gumlet php-image-resize

Gumlet php-image-resize before 3.0.1 Denial of Service via Decompression Bombs

CVSS 8.7 HighEPSS 0.0054 · 45th percentile

Published by the CVE Program (CNA: VulnCheck) at 12 Oct 2026, 15:16 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
gumlet	php-image-resize pkg:composer/gumlet/php-image-resize	affected before 3.0.1 semver Other versions: unaffected

Identifiers

CVE-2026-109398

CNA

VulnCheck

Weakness (CWE)

CWE-409

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.7	High	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
7.5	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0054, the 45th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 12 Oct 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/gumlet/php-image-resize/security/advisories/GHSA-3g9v-hjrx-mg5h vendor-advisory
github.com/gumlet/php-image-resize/commit/10c1f386e672536d82be0f39b236a80d87767a50 patch
github.com/gumlet/php-image-resize/commit/cd01c9e8aa2382211d760c825799c8102987a8c2 patch
github.com/gumlet/php-image-resize/blob/3.0.0/lib/ImageResize.php#L122-L163 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-service-via-decompression-bombs third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.