PT-2026-42033 · Packagist · Setasign/Fpdi

Published 2026-05-19 · Updated 2026-05-19 · CVE-2026-45802

OSV

CVSS v4.0

6.0

Medium

Base vector

AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Impact

This is a significant Denial of Service (DoS) vulnerability. Any application that uses FPDI to process user-supplied PDF files is at risk. 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.

Patches

Fixed as of version 2.6.7

Workarounds

No.

References

No.

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2026-45802

GHSA-2MGW-7Q6P-8GRG

Affected Products

Setasign/Fpdi

References · 3

• https://osv.dev/vulnerability/GHSA-2mgw-7q6p-8grg · Vendor Advisory
• https://github.com/Setasign/FPDI/security/advisories/GHSA-2mgw-7q6p-8grg · Note
• https://github.com/Setasign/FPDI · Note