CVE-2026-77897 Power Automate - Path Traversal

Power Automate contains a relative path traversal caused by improper validation of file paths, letting authorized attackers elevate privileges locally, exploit requires attacker to be authorized.

CVSS base score 7.0 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.28% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
8 September 2026
Updated
15 October 2026
Weakness
CWE-23

Vendor fix

Update to the latest version of Power Automate.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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