# Check browser clipboard permission when Bastion text copy and paste fails

> Separate browser permission, Bastion policy and file transfer requirements.

- Canonical URL: https://update.dsesecurity.com/updates/dse-20260917-192-check-browser-clipboard-permission-when-bastion-text-copy-and-paste-fails/
- Publisher: Detection Systems & Engineering (DSE Security)
- Author: DSE Security Editorial Team
- Published: 2026-09-17T16:31:48+00:00
- Modified: 2026-09-17T16:46:30+00:00
- Last reviewed by DSE: 2026-09-17
- Resource type: Guide
- DSE priority: Information
- Topics: Cybersecurity, Networks & Infrastructure
- Reading time: 1 minutes

## What you need to know

Separate browser permission, Bastion policy and file transfer requirements.

## Potentially affected

Apply this review to an authorized browser-based Bastion session. Identify the browser permission, intended text operation and organization's clipboard policy. Keep troubleshooting separate from a request to enable a deliberately restricted feature.

## DSE recommendation

DSE recommends checking the browser and Bastion configuration before changing the target VM.

## Article

## Source facts

Microsoft says browser-based Bastion copy and paste requires granting the page clipboard access when prompted. The guide limits the feature to text and directs file transfers to a native-client connection. It also documents a Bastion setting that can disable web-client copy and paste, with Standard or higher required to change that setting. [Microsoft Learn](https://learn.microsoft.com/en-us/azure/bastion/bastion-vm-copy-paste).

## Applicability

Apply this review to an authorized browser-based Bastion session. Identify the browser permission, intended text operation and organization’s clipboard policy. Keep troubleshooting separate from a request to enable a deliberately restricted feature.

## DSE recommendation

DSE recommends checking the browser and Bastion configuration before changing the target VM. Use harmless sample text to isolate the problem, and confirm whether clipboard transfer is permitted for that workload. If the task is actually a file transfer, select an approved method appropriate to files rather than repeatedly attempting clipboard operations. Avoid sensitive material during diagnosis.

## Verification

With permission and policy aligned, copy harmless text in each required direction and confirm the exact result. Record whether failure occurred at browser access, session configuration or the requested content type. Do not broaden organizational clipboard access without an authorized change merely to resolve one session’s inconvenience.

## Official references

[Microsoft Learn: Copy and paste to and from a virtual machine via Azure Bastion](https://learn.microsoft.com/en-us/azure/bastion/bastion-vm-copy-paste).

## Primary reference

- Name: Copy and paste to and from a virtual machine via Azure Bastion - Azure Bastion | Microsoft Learn
- Authority: Microsoft Learn
- URL: https://learn.microsoft.com/en-us/azure/bastion/bastion-vm-copy-paste
- Source publication date: Not stated by the source

## Citation and use

Preferred citation: “Check browser clipboard permission when Bastion text copy and paste fails,” DSE Security, https://update.dsesecurity.com/updates/dse-20260917-192-check-browser-clipboard-permission-when-bastion-text-copy-and-paste-fails/
Publishing principles: https://update.dsesecurity.com/updates/dse-updates-editorial-methodology/
Usage and citation policy: https://update.dsesecurity.com/usage/
Copyright © 2026 Detection Systems & Engineering. All rights reserved.