CVE-2026-59118

Improper authorization in Copilot Cowork allows an unauthorized attacker to elevate privileges over a network.

CVSS 3.1

9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

EPSS

0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-25)

CWE

CWE-285

Published

2026-08-07

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

Affected

• microsoft:power_apps

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59118

Check your stackJSON