Vulnerability · Published Jun 11, 2026 · Assigned by GitHub_M

CVE-2026-45802FPDI: Memory Exhaustion and Endless Loop in FPDI leads to Denial of Service

Medium 6.0

In plain English

A medium-severity resource allocation without limits in FPDI from Setasign. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)6.0Medium

Exploit odds (30 days)0.3%top 82.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

FPDI is a collection of PHP classes that facilitate reading pages from existing PDF documents and using them as templates in FPDF. Prior to version 2.6.7, an attacker can upload a small, malicious PDF file that will cause the server-side script to crash due to memory exhaustion or a script time-out. Repeated attacks can lead to sustained service unavailability. This issue has been patched in version 2.6.7.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	setasign/fpdi	2.6.7	GHSA-2mgw-7q6p-8grg

Affected products (as reported)

Vendor	Product	Versions
Setasign	FPDI	< 2.6.7

Weakness: CWE-770, CWE-400 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References

https://github.com/Setasign/FPDI/security/advisories/GHSA-2mgw-7q6p-8grg x_refsource_CONFIRM
https://github.com/Setasign/FPDI/commit/1695cfcc7e01fe844a7296b3de90855a3fa65be6 x_refsource_MISC
https://github.com/Setasign/FPDI/releases/tag/v2.6.7 x_refsource_MISC