src_21d43dfae5b42186a2
- Source-provided label
- Not reported
- Evidence class
- mentioned in report
- Confidence
- Not reported
- Observed
- Jun 15, 2026 12:21 UTC
- Retrieved
- Oct 08, 2026 03:49 UTC
A single support ticket became the front door to 275 million student records. The Canvas breach shows how quickly untrusted user content can become a serious security incident when it is rendered inside privileged internal tooling. This was not an exotic attack chain; it was stored XSS, over-scoped access,
The Instructure Canvas Breach (2026): How XSS in a Support Ticket Compromised 275 Million Students95ef6db1532c3b1cea39a3ded1ffb319622a59d8d4a8800b5ffbb0feac0941aaNetwork 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.
This record contains metadata and attribution only. It does not host, download, unpack, render, or execute malware samples.
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.
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.