Medium severity4.4NVD Advisory· Published Oct 16, 2026· Updated Oct 16, 2026
CVE-2026-111664
CVE-2026-111664
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.
Affected products
1- Range: <2.2.5
Patches
Vulnerability mechanics
References
5- github.com/safing/portmaster/blob/v2.2.3/service/core/api.gonvd
- github.com/safing/portmaster/commit/f943e1eaf98f45bc48490bf288e1d63c04929ae0nvd
- github.com/safing/portmaster/issues/2292nvd
- github.com/safing/portmaster/releases/tag/v2.2.5nvd
- www.vulncheck.com/advisories/safing-portmaster-before-2.2.5-unauthenticated-forced-downgrade-via-api-v1-updates-from-urlnvd
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