# CVE-2026-33102: Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.

Source: https://junglewise.ai/threats/cve-2026-33102-url-redirection-to-untrusted-site-open-redirect-in-m365-copilot  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-23  
License: CC BY 4.0 with a link back

CVE-2026-33102 · Severity: critical · CVSS 9.3 · Published 2026-04-23

Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.

Technologies: [Microsoft 365 Copilot](https://junglewise.ai/threats/technologies/365-copilot). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-33102 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-33102 being exploited in the wild.

**How severe is CVE-2026-33102?** Critical severity, with a CVSS score of 9.3, published 23 April 2026.

**Which products and versions are affected?** Microsoft 365 Copilot. The advisory does not name versions.

**Is there a fix for CVE-2026-33102?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2026-33102?** Check whether you run Microsoft 365 Copilot. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Microsoft 365 Copilot

## Related threats

- [Microsoft Graphics Component stack buffer overflow](https://junglewise.ai/threats/cve-2026-85881-stack-based-buffer-overflow-in-microsoft-graphics-component)
- [Microsoft M365 Copilot command injection privilege escalation](https://junglewise.ai/threats/cve-2026-85885-improper-neutralization-of-special-elements-used-in-a-command)
- [Microsoft 365 Copilot Business Chat command injection](https://junglewise.ai/threats/cve-2026-78501-microsoft-365-copilot-business-chat-command-injection)
- [Microsoft Copilot command injection in mobile applications](https://junglewise.ai/threats/cve-2026-48561-microsoft-copilot-command-injection-in-mobile-applications)
- [Microsoft M365 Copilot open redirect privilege escalation](https://junglewise.ai/threats/cve-2026-41106-microsoft-m365-copilot-open-redirect-privilege-escalation)