CVE-2026-111664 Details
Description
Safing Portmaster before 2.2.5 contains a missing authorization vulnerability that allows unprivileged local processes to force updates by calling the POST /api/v1/updates/from-url endpoint registered with api.PermitAnyone. Attackers can supply an attacker-controlled index URL that bypasses version checks and auto-apply settings, installing older Safing-signed releases carrying previously fixed vulnerabilities.
A missing authorization vulnerability has been identified in Safing Portmaster versions prior to 2.2.5. This vulnerability allows unprivileged local processes to force application updates by using the POST /api/v1/updates/from-url endpoint, which is accessible to anyone. Attackers can manipulate the index URL to bypass version checks and automatic application settings, potentially reinstalling older versions of Safing software that contain previously addressed vulnerabilities.
Users can update to Safing Portmaster version 2.2.5 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 16, 2026CISA-ADP
Assessed Oct 21, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/safing/portmaster/blob/v2.2.3/service/core/api.go#L145-L159 | [email protected] | Source CodeVendor |
| https://github.com/safing/portmaster/commit/f943e1eaf98f45bc48490bf288e1d63c04929ae0 | [email protected] | Source CodeVendor |
| https://github.com/safing/portmaster/issues/2292 | [email protected] | Issue TrackingTechnical DescriptionVendor |
| https://github.com/safing/portmaster/releases/tag/v2.2.5 | [email protected] | Release NotesVendor |
| https://www.vulncheck.com/advisories/safing-portmaster-before-2.2.5-unauthenticated-forced-downgrade-via-api-v1-updates-from-url | [email protected] | AdvisoryRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-306 | Missing Authentication for Critical Function | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Safing Portmaster | >= 0, < 2.2.5 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 21, 2026 | CVE Modified | CISA-ADP |
| Oct 16, 2026 | New CVE Received | [email protected] |