GCD AI RADAR
incidents/AIR-2025-0064

Hacking ChatGPT's Memories with Prompt Injection

Attack on AI1 Research / proof of conceptPrompt injectionOther

A researcher demonstrated that ChatGPT's memory feature can be poisoned using prompt injections hidden inside shared Google Docs. The injected false facts successfully persisted across multiple chat sessions.

Details

type
Attack on AI
An AI model, agent or AI-powered product was the thing exploited, abused or leaked.
categories
  • Prompt injectionprimary
    Untrusted content (web pages, documents, emails, tool output) steers a model into ignoring its instructions.
  • Other
    In scope, but none of the categories above fits. Reviewed periodically for new categories.
owasp llm top 10
mitre atlas
Both rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
severity
1 · Research / proof of concept
Demonstrated by researchers; no known real-world exploitation.
targets
OpenAI
products
ChatGPT
incident date
Feb 2024 (approx.)
first reported
7 Nov 2025
origin
MITRE ATLAS
Derived from MITRE ATLAS (Apache 2.0, © MITRE).
classifier confidence
0.95 · published at or above 0.80; see the methodology
tags
prompt-injection · memory-poisoning · chatgpt · connected-apps
record
created 2026-10-18 06:55Z · updated 2026-10-18 06:55Z · json

Sources · 2

  1. 2025-11-07
    Hacking ChatGPT's Memories with Prompt Injection
    MITRE ATLAS · atlas.mitre.org/studies/AML.CS0040
  2. 2025-11-07
    ChatGPT: Hacking Memories with Prompt Injection
    Embrace The Red · embracethered.com/blog/posts/2024/chatgpt-hacking-memories

Titles and links belong to their publishers. The summary above is written by GCD AI RADAR in its own words; data is CC BY-SA 4.0.

Related incidents