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CVE-2026-7791

Local Privilege Escalation via TOCTOU Race Condition in Amazon WorkSpaces Skylight Agent

HIGH
7.8
CVSS Score
Published: May 4, 2026 at 10:07 PM UTC
Updated: October 26, 2026 at 07:10 PM UTC
1 product affected across 1 vendorWorkspaces

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Severity
HIGH7.8
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

Improper privilege management in the log rotation mechanism of the Skylight Workspace Config Service in Amazon WorkSpaces for Windows before 2.6.2034.0 allows a local non-admin authenticated user to place arbitrary files into arbitrary locations bypassing file system permission protections, leading to local privilege escalation to SYSTEM.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Workspaces· Amazon
90%
0
Vendor states this is fixed in 2.6.2034.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://aws.amazon.com/security/security-bulletins/2026-025-aws/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHAMZN
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-367

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