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Back to active CVEs
High · CVSS 8.5CVE-2026-7791

Local Privilege Escalation via TOCTOU Race Condition in Amazon WorkSpaces Skylight AgentCVE-2026-7791

Answer in brief

CVE-2026-7791 records a High severity (CVSS 8.5) vulnerability in Local Privilege Escalation via TOCTOU Race Condition in Amazon WorkSpaces Skylight Agent. The current sources do not mark it as known exploited. The current feed maps Amazon/Workspaces (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published May 4, 2026Updated Oct 20, 2026Source checked Oct 20, 2026First seen by HOL Oct 20, 2026Material review Oct 20, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 8.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Amazon/Workspaces (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Amazon/Workspacesgeneric>=0 <2.6.2034.02.6.2034.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Amazon/Workspaces.
  2. 2Review the reported fix. Update Amazon/Workspaces to 2.6.2034.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    May 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 20, 2026

Sources and claim methodology

  • Source referenceaws.amazon.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Privilege Escalation
EPSS
Not reported
CWE IDs
CWE-367
Source
CVE List V5
Source checked
Oct 20, 2026
References
1 linked source
Open source record