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AtlassianCybersecurity incident

Atlassian's Rovo product had a critical vulnerability due to an isolation failure in its LLM environment, which allowed for cross-user and cross-tenant compromise and code execution.

What happened

Post: "Critical Cross-user and Cross-tenant compromise in Atlassian Rovo"

Source

RedditSep 25, 2026By u/Story_Lost

r/Information_Security

Critical Cross-user and Cross-tenant compromise in Atlassian Rovo

upvotes
12
comments
0

Post

Highlighted: the lines this signal was extracted from

An isolation failure in an LLM-orchestrated environment due to simple isolation misconfigurations led to Rovo sessions belonging to other users and tenants being discovered, reached, and ultimately used to execute code within their contexts. The finding was rated Critical by Atlassian. Details here

reddit.com/r/Information_Security/comments/1wpvfki/critical_crossuser...Read the full source

Extracted by Autobound

From the Signal API record
Signal
Cybersecurity incident

What this signalsUser posts often show product pain before it reaches reviews or churn.

Subreddit
r/Information_Security
Stage
Confirmed
Event date
Sep 2026

The full record

From the Signal API record

Numbers

Mentions
21

Details

Timing
Completed
Category
Vulnerability disclosed
Virality
Very low
Post kind
Multi media
Prominence
Core
Company's role
Subject
Signal category
Event

Topics and mentions

Topics

  • security
  • vulnerability
  • cloud security
  • multi-tenancy
  • ai

Products named

  • Rovo

Extraction

Sentiment
Negative
Detected
Sep 25, 2026
signal_type
reddit-company
signal_subtype
cybersecurityIncident

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The API returns more than this page shows

This page shows a preview. The full reddit-company record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/338352da-c383-5023-ae7c-63606868d0c9 returns this record as JSON. POST /v1/companies/enrich returns every signal for atlassian.com.

{
  "signal_id": "338352da-c383-5023-ae7c-63606868d0c9",
  "signal_type": "reddit-company",
  "signal_subtype": "cybersecurityIncident",
  "detected_at": "2026-09-25T12:47:07+00:00",
  "company": {
    "name": "Atlassian",
    "domain": "atlassian.com"
  },
  "data": {
    "nsfw": false,
    "stage": "confirmed",
    "awards": 0,
    "timing": "completed",
    "topics": [
      "security",
      "vulnerability",
      "cloud security",
      "ai",
      "multi-tenancy"
    ],
    "post_id": "1wpvfki",
    "summary": "Atlassian's Rovo product had a critical vulnerability due to an isolation failure in its LLM environment, which allowed for cross-user and cross-tenant compromise and code execution.",
    "category": "vulnerability_disclosed",
    "evidence": [
      "[post] Critical Cross-user and Cross-tenant compromise in Atlassian Rovo",
      "[post] An isolation failure in an LLM-orchestrated environment due to simple isolation misconfigurations led to Rovo sessions belonging to other users and tenants being discovered, reached, and ultimately used to execute code within their contexts.",
      "[post] The finding was rated Critical by Atlassian."
    ],
    "virality": "very_low",
    "post_date": "2026-09-25T12:47:07.000Z",
    "post_kind": "multi_media",
    "post_text": "An isolation failure in an LLM-orchestrated environment due to simple isolation misconfigurations led to Rovo sessions belonging to other users and tenants being discovered, reached, and ultimately used to execute code within their contexts. The finding was rated Critical by Atlassian.\n\nDetails here",
    "sentiment": "negative",
    "subreddit": "Information_Security",
    "event_date": "2026-09",
    "post_title": "Critical Cross-user and Cross-tenant compromise in Atlassian Rovo",
    "prominence": "core",
    "source_url": "https://www.reddit.com/r/Information_Security/comments/1wpvfki/critical_crossuser_and_crosstenant_compromise_in/",
    "entity_role": "subject",
    "post_author": "Story_Lost",
    "upvote_ratio": 0.7727272727272727,
    "mention_count": 21,
    "mention_surge": true,
    "subreddit_url": "https://www.reddit.com/r/Information_Security/",
    "total_upvotes": 12,
    "comments_total": 0,
    "total_comments": 0,
    "post_author_url": "https://www.reddit.com/user/Story_Lost/",
    "signal_category": "event",
    "comments_included": 0,
    "products_mentioned": [
      "Rovo"
    ]
  }
}

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