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https://www.productionai.institute/graph/events/evt-aiid-1172

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Production AI Institute public record · AI Incident Database: Meta AI Bug in Deployed Service Reportedly Allowed Potential Access to Other Users' Prompts and Responses · observed 2025-11-20
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AI Incident Database: Meta AI Bug in Deployed Service Reportedly Allowed Potential Access to Other Users' Prompts and Responses

A security researcher reported a vulnerability in Meta AI's deployed chatbot service that, under certain conditions, could allow an unauthorized user to view another user's prompts and AI-generated responses. The flaw reportedly involved guessable prompt IDs and insufficient server-side authorization checks. Meta reportedly fixed the issue in January 2025 and found no evidence of malicious exploitation, awarding the researcher a bug bounty.

AI Incident Database · Incident 1172

Operator lens (medium): inspect D2 (output validation), D6 (autonomy oversight), D7 (tool permissions).

Confidence
82%
Sources
3
Entities
6
Detected
detected 241d ago

Event summary

A security researcher reported a vulnerability in Meta AI's deployed chatbot service that, under certain conditions, could allow an unauthorized user to view another user's prompts and AI-generated responses. The flaw reportedly involved guessable prompt IDs and insufficient server-side authorization checks. Meta reportedly fixed the issue in January 2025 and found no evidence of malicious exploitation, awarding the researcher a bug bounty.

D2D6D7

Linked entities

  • Meta

    vendor | 70%

  • chatbot-developers

    organisation | 70%

  • large-language-model-developers

    organisation | 70%

  • meta-users

    organisation | 70%

  • general-public

    organisation | 70%

  • meta-ai-users

    organisation | 70%

Related graph edges

EdgeTypeConfidence
ent-aiid-large-language-model-developers to ent-psf-d1maps to60%
ent-aiid-large-language-model-developers to ent-psf-d1maps to60%
ent-aiid-large-language-model-developers to ent-psf-d1maps to60%
ent-aiid-large-language-model-developers to ent-psf-d2maps to60%
ent-aiid-large-language-model-developers to ent-psf-d2maps to60%
ent-aiid-large-language-model-developers to ent-psf-d2maps to60%
ent-aiid-large-language-model-developers to ent-psf-d6maps to60%
ent-aiid-large-language-model-developers to ent-psf-d6maps to60%
ent-aiid-large-language-model-developers to ent-psf-d6maps to60%
ent-vendor-meta to ent-psf-d1maps to60%
ent-vendor-meta to ent-psf-d1maps to60%
ent-vendor-meta to ent-psf-d1maps to60%

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Event dates

  • Happened 26 Dec 2024

  • Detected 20 Nov 2025

Sources

  • AI Incident Database - Incident 1172

    secondary | checked 9 July 2026

    Open source
  • Meta AI had a privacy flaw that let users see other people's chats, hacker gets Rs 8.5 lakh for reporting it

    secondary | checked 20 Nov 2025

    Open source
  • Meta fixes bug that could leak users’ AI prompts and generated content

    secondary | checked 13 Aug 2025

    Open source
Cite this record

"AI Incident Database: Meta AI Bug in Deployed Service Reportedly Allowed Potential Access to Other Users' Prompts and Responses." https://www.productionai.institute/graph/events/evt-aiid-1172 (observed 2024-12-26; retrieved 2026-07-19). PAI.

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