CVE-2026-45802

FPDI: Memory Exhaustion and Endless Loop in FPDI leads to Denial of Service

MEDIUM
6
CVSS Score
Published: June 11, 2026 at 06:59 PM UTC
Updated: October 26, 2026 at 11:10 AM UTC
1 product affected across 1 vendorFPDI

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Severity
MEDIUM6
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.6.7
Affected range stops below 2.6.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6MEDIUMGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-770CWE-400

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