Obsidian Security incident
Obsidian Browser Extension ver. 1.13.x Page Unresponsive Errors
Obsidian Security experienced a minor incident on November 13, 2025 affecting Threat Management, lasting 13h 41m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Nov 12, 2025, 07:12 PM UTC
We are currently investigating reports from a subset of customers reporting page unresponsive messages for a subset of webpages under Google Chrome and Microsoft edge when running version 1.13.x of the Obsidian browser extension. Additional updates will be posted on this incident notification as our investigation into the root cause of this issue progresses
- identified Nov 13, 2025, 01:14 AM UTC
A root cause has been identified for the issue impacting the Obsidian Browser extension that is resulting in a subset of customers experiencing browser performance degradation when the Obsidian Browser Extension analyzes certain pages for Phishing Detections. Scope and impact Issue onset has been observed with ver. 1.13.x and up Other Browser Extension capabilities remain unaffected. Temporary mitigation (workaround) Administrators can temporarily disable the Phishing Detections component to prevent the behavior while a permanent fix is prepared. How to apply the workaround Sign in to the Obsidian admin console, then open Browser Extension settings. Locate Phishing Detections and set the Phishing Status to “Disabled.” Save changes, wait a few minutes for propagation, then refresh affected browsers. Next steps A new extension version with a permanent fix is being prepared and will roll out via auto‑upgrade. After the fixed version is deployed in your environment, re‑enable Phishing Detections to restore full protection. Support For assistance determining whether to apply this mitigation, contact Obsidian Support at [email protected] or your Technical Account Manager.
- resolved Nov 13, 2025, 02:56 PM UTC
This incident has been resolved. We have released a permanent fix in the Obsidian Browser Extension version ver. 1.13.4, which is now rolling out via auto‑update. What to expect: The updated extension will install automatically as it propagates to users. Next steps: If you previously disabled Phishing Detections as a workaround, you may re‑enable it once your environment has received version 1.13.4. Scope: No other Browser Extension capabilities were affected. Support: For help confirming rollout status or re‑enabling Phishing Detections, contact Obsidian Support at [email protected] or your Technical Account Manager. Thank you for your patience while we worked to resolve this issue.