Last seen November 4, 2025

Claude Security Incident

A novel indirect prompt injection attack allows threat actors to compromise Anthropic's Claude AI Code Interpreter, leveraging its network features to exfiltrate sensitive user chat data. This exploit bypasses default network settings by tricking Claude into uploading sandbox-stored user information directly to an attacker's account via Anthropic's own APIs.

Technical Severity
Low severity
Lifecycle Status

STABLE

Sources

What Happened

A novel indirect prompt injection attack allows threat actors to compromise Anthropic's Claude AI Code Interpreter, leveraging its network features to exfiltrate sensitive user chat data. This exploit bypasses default network settings by tricking Claude into uploading sandbox-stored user information directly to an attacker's account via Anthropic's own APIs.

Why This Matters

Publisher reporting describes a security event affecting Claude. BugSkan could not yet bind a CVE or affected version, so treat the source details as the current record.

Recommended Action

Confirm whether Claude is present in your environment and review vendor guidance for this report. Apply available patches or mitigations if your deployment matches the described conditions.

Exposure

My Interests Exposure

Exposure unknown

Recommended Response
Last Seen

Nov 04, 2025 05:30

Exposure reason: This incident does not currently match a technology in My Interests.

Exploitation status: UNKNOWN

Primary entities:

AnthropicClaudeClaude AICode InterpreterData LeakagePrompt Injection

Timeline

  • Incident first seen
    Oct 31, 2025 05:30

    BugSkan first recorded this incident.

  • Claude AI vulnerability exposes enterprise data through code interpreter exploit - csoonline.com
    Oct 31, 2025 05:30

    csoonline.com · Vulnerability

  • Hackers Turn Claude AI Into Data Thief With New Attack - eSecurity Planet
    Nov 04, 2025 05:30

    esecurityplanet.com · News

  • Latest observed development
    Nov 04, 2025 05:30

    Most recent source or update associated with this incident.

Sources

Claude AI vulnerability exposes enterprise data through code interpreter exploit - csoonline.com

csoonline.com · Oct 31, 2025 05:30

A vulnerability in Anthropic's Claude AI allows attackers to leverage indirect prompt injection against its code interpreter feature. This exploit enables the exfiltration of sensitive enterprise data by uploading it to attacker-controlled accounts via Claude’s API, bypassing default network access controls.

Open publisher source
Hackers Turn Claude AI Into Data Thief With New Attack - eSecurity Planet

esecurityplanet.com · Nov 04, 2025 05:30

A novel indirect prompt injection attack allows threat actors to compromise Anthropic's Claude AI Code Interpreter, leveraging its network features to exfiltrate sensitive user chat data. This exploit bypasses default network settings by tricking Claude into uploading sandbox-stored user information directly to an attacker's account via Anthropic's own APIs.

Open publisher source

Other BugSkan incidents that share identifiers, products, or vendors with this report.

My Interests Match

Want personalized relevance?

Create an account to see which incidents overlap with your interests.

← Back to incident intelligence