CVE-2026-45802: CWE-770: Allocation of Resources Without Limits or Throttling in Setasign FPDI
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.
AI Analysis
Technical Summary
Setasign FPDI, a PHP library for reading and using pages from existing PDF documents as templates, contains a resource exhaustion vulnerability (CWE-770) in versions before 2.6.7. An attacker can upload a small malicious PDF that triggers excessive memory consumption or script time-outs on the server, causing crashes and potentially sustained denial of service. The vulnerability is addressed by a patch in version 2.6.7.
Potential Impact
Successful exploitation results in server-side script crashes due to memory exhaustion or time-outs, which can cause denial of service and disrupt availability of applications using FPDI versions prior to 2.6.7.
Mitigation Recommendations
Upgrade FPDI to version 2.6.7 or later, where this vulnerability has been patched. No other mitigation or temporary fix is indicated.
CVE-2026-45802: CWE-770: Allocation of Resources Without Limits or Throttling in Setasign FPDI
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.
CVSS v4.0
Score 6.0medium
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Setasign FPDI, a PHP library for reading and using pages from existing PDF documents as templates, contains a resource exhaustion vulnerability (CWE-770) in versions before 2.6.7. An attacker can upload a small malicious PDF that triggers excessive memory consumption or script time-outs on the server, causing crashes and potentially sustained denial of service. The vulnerability is addressed by a patch in version 2.6.7.
Potential Impact
Successful exploitation results in server-side script crashes due to memory exhaustion or time-outs, which can cause denial of service and disrupt availability of applications using FPDI versions prior to 2.6.7.
Mitigation Recommendations
Upgrade FPDI to version 2.6.7 or later, where this vulnerability has been patched. No other mitigation or temporary fix is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-13T08:19:32.603Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2b13c8815e7002b825ebab
Added to database: 06/11/2026, 20:00:08 UTC
Last enriched: 06/11/2026, 20:15:22 UTC
Last updated: 07/19/2026, 08:20:09 UTC
Views: 86
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