A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged… (CVE-2026-86136)
CVE-2026-86136 is a high-severity vulnerability in WatchGuard Fireware OS affecting the wgagent management daemon. It involves a missing authorization check in the session initialization function, allowing an authenticated low-privileged user, including read-only or guest administrators, to crash the wgagent process and read arbitrary files accessible to the daemon via a crafted management API request.
AI Analysis
Technical Summary
This vulnerability arises from a missing authorization control in the wgagent management daemon's session initialization function. An attacker with low privileges who is authenticated can exploit this flaw by sending a crafted management API request. This can lead to a denial of service by crashing the wgagent process and unauthorized disclosure of arbitrary files accessible to the daemon. The vulnerability is identified as CWE-22 (Improper Limitation of a Pathname to a Restricted Directory).
Potential Impact
An authenticated low-privileged user can cause the wgagent process to crash, resulting in denial of service. Additionally, the attacker can read arbitrary files accessible to the daemon, potentially exposing sensitive information. This elevates the risk of information disclosure and service disruption.
Mitigation Recommendations
No patch or official fix information is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to authenticated users with low privileges and monitor for suspicious management API requests if possible.
A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged… (CVE-2026-86136)
Description
CVE-2026-86136 is a high-severity vulnerability in WatchGuard Fireware OS affecting the wgagent management daemon. It involves a missing authorization check in the session initialization function, allowing an authenticated low-privileged user, including read-only or guest administrators, to crash the wgagent process and read arbitrary files accessible to the daemon via a crafted management API request.
CVSS v4.0
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from a missing authorization control in the wgagent management daemon's session initialization function. An attacker with low privileges who is authenticated can exploit this flaw by sending a crafted management API request. This can lead to a denial of service by crashing the wgagent process and unauthorized disclosure of arbitrary files accessible to the daemon. The vulnerability is identified as CWE-22 (Improper Limitation of a Pathname to a Restricted Directory).
Potential Impact
An authenticated low-privileged user can cause the wgagent process to crash, resulting in denial of service. Additionally, the attacker can read arbitrary files accessible to the daemon, potentially exposing sensitive information. This elevates the risk of information disclosure and service disruption.
Mitigation Recommendations
No patch or official fix information is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to authenticated users with low privileges and monitor for suspicious management API requests if possible.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-34hp-73hm-xf3h
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-86136"]
- Database Specific Severity
- HIGH
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abc5d3f680226ef6899ba3d
Added to database: 09/30/2026, 00:52:15 UTC
Last enriched: 09/30/2026, 01:21:30 UTC
Last updated: 09/30/2026, 01:27:03 UTC
Views: 3
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