CVE-2026-59118 Copilot Cowork Elevation of Privilege Vulnerability
An unauthorized attacker can elevate privileges in Microsoft Copilot Cowork due to improper authorization, requiring a patch.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-59118?
CVE-2026-59118 is a critical vulnerability in Microsoft Copilot Cowork, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Improper authorization in Copilot Cowork allows an unauthorized attacker to elevate privileges over a network.
Weakness: CWE-285
Which versions are affected by CVE-2026-59118?
It affects 1 product.
Products include Microsoft Power Apps.
How do I fix CVE-2026-59118?
No fix has been published for CVE-2026-59118 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-59118 being exploited?
There is no known exploitation of CVE-2026-59118 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Copilot Cowork
- CVE-2025-47733 Microsoft Power Apps Information Disclosure Vulnerability
- CVE-2026-26149 Microsoft Power Apps Desktop Client Spoofing Vulnerability
- CVE-2026-32172 Microsoft Power Apps Remote Code Execution Vulnerability
- CVE-2026-20960 PowerApps Desktop Client Remote Code Execution Vulnerability
- CVE-2023-32052 Microsoft Power Apps (online) Spoofing Vulnerability
Sources
Also known as GHSA-jc2g-2frr-2pxq.