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AII-1002-62263
ReportedReported by fewer than three independent publishers, with no official finding.Supporting sources are pending verification.

ChatGPT API vulnerability enables potential DDoS attacks

Security researcher Benjamin Flesch reportedly discovered a vulnerability in ChatGPT's API that could allow attackers to conduct distributed denial-of-service attacks by submitting unlimited duplicate URLs without triggering safeguards. The flaw lacks rate-limiting and duplicate filtering mechanisms that would normally prevent such abuse.

19 January 2025 Β· OpenAI Β· Security and cyberattacks
19 January 2025
AII-1002-62263
Quick facts
Category
Security and cyberattacks
Country
Germany
Date
19 January 2025
Drafted by
Raidu Incident Detection

What happened

A security researcher Benjamin Flesch discovered a vulnerability in OpenAI's ChatGPT API that could enable distributed denial-of-service attacks.

The flaw lies in the API's /backend-api/attributions endpoint, which accepts an unlimited number of URLs in a single request without verifying duplicates or enforcing limits.

By including thousands of hyperlinks, an attacker could cause OpenAI servers to generate a massive volume of HTTP requests to any target website.

Reported impact

The vulnerability could allow threat actors to use ChatGPT to conduct DDoS attacks on websites, overwhelming target infrastructure.

The absence of rate-limiting or duplicate request filtering mechanisms provides what researchers describe as an amplification vector for malicious purposes.

Index analysis

The vulnerability reflects poor programming practices and insufficient attention to security considerations in the API design.

Security experts recommend OpenAI implement strict limits on URLs submitted, filter duplicate requests, and add rate-limiting measures.

Classification

Category
Security and cyberattacks
Industry
Digital security
Country
Germany
Harm status
Potential harm
Intent
Unintentional
Timing
Post-deployment
Harmed
Business
Consequences
None recorded
AI systems
ChatGPT API

Sources and evidence

Sources not yet published

This record was researched and written by the Index from original reporting. Its sources are still being verified by an editor, and they are listed here once that check is complete. Until then the record carries no reviewer.

How sources are verifiedSuggest a source for this incident