Infinite Loop Vulnerability in VectifyAI PageIndex PDF Table of Contents Handler
CVE-2026-8318

6.9MEDIUM

Key Information:

Vendor

Vectifyai

Status
Pageindex
Vendor
CVE Published:
11 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8318?

A security flaw in VectifyAI PageIndex has been identified within the PDF Table of Contents Handler, specifically in the toc_transformer function of page_index.py. This vulnerability allows an attacker to exploit the software remotely, triggering an infinite loop that disrupts normal operations. The exploit has been publicly disclosed, posing potential risks to users relying on the affected versions of PageIndex.

Affected Version(s)

PageIndex f50e52975313c6716c02b20a119577a1929decba

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-8318 - Proof of Concept

References

https://vuldb.com/vuln/362605
vdb-entrytechnical-description
https://vuldb.com/vuln/362605/cti
signaturepermissions-required
https://vuldb.com/submit/811273
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Eric-b (VulDB User)
.