src_c25d91fa3ad9ae9ac7
- Source-provided label
- Not reported
- Evidence class
- mentioned in report
- Confidence
- Not reported
- Observed
- Aug 27, 2026 04:00 UTC
- Retrieved
- Oct 08, 2026 03:44 UTC
Breaking Claude Code Opus 5 Auto Mode
In this post, we explore how a simple website summary request hijacks Claude Code Opus 5 in Auto Mode and achieves code execution with 60-80% attack success rate using a small sample size. This is interesting because a third-party evaluation commissioned by Anthropic showed a 0.00% prompt injection attack success rate for Opus 5 in Auto Mode. Auto Mode Is Now the Default in Claude Code Auto Mode r
Reference details
- Source category
- Research & news
- Report title
Breaking Claude Code Opus 5 Auto Mode- First reported
- Aug 27, 2026 04:00 UTC
- Last reported
- Aug 27, 2026 04:00 UTC
- Catalog updated
- Oct 08, 2026 03:44 UTC
- Record ID
6d3448d67791996ca4414865891822730b9e388334d3f32d14f74fab1bad2bca
Published indicators
Network indicators are visibly defanged. This page does not make them clickable or send them to another service.
No validated file hashes or network indicators are stored for this record.
Source observations
This record contains metadata and attribution only. It does not host, download, unpack, render, or execute malware samples.
Feed collection status
Sources represented on this page. Publication and observation dates describe the content; successful batch dates describe local collection. A recent batch does not certify complete coverage or current provider availability.
1 sources: 0 stale, 0 needing attention, 0 paused, 1 unverified.
Review source update dates and status
- src_c25d91fa3ad9ae9ac7Collection status unverifiedLast successful batch: Unverified
Stale means older than twice the recorded collection interval, with a minimum of one hour; without an interval, the threshold is 24 hours. Cached content remains available while a feed is stale, paused, or unverified.