{"id":"CVE-2026-111664","title":"Safing Portmaster before 2.2.5 Unauthenticated Forced Downgrade via /api/v1/updates/from-url","summary":"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…","severity":"medium","cvss":4.4,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","cvssSource":"cna","cwe":["CWE-306"],"vendor":"safing","product":"portmaster","affected":["portmaster < 2.2.5"],"published":"2026-10-16","updated":"2026-10-16","sourceUpdated":"2026-10-16T17:39:27.588Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111664","references":[{"url":"https://github.com/safing/portmaster/issues/2292"},{"url":"https://github.com/safing/portmaster/blob/v2.2.3/service/core/api.go#L145-L159"},{"url":"https://github.com/safing/portmaster/commit/f943e1eaf98f45bc48490bf288e1d63c04929ae0"},{"url":"https://github.com/safing/portmaster/releases/tag/v2.2.5","label":"portmaster v2.2.5 Release Notes"},{"url":"https://www.vulncheck.com/advisories/safing-portmaster-before-2.2.5-unauthenticated-forced-downgrade-via-api-v1-updates-from-url","label":"VulnCheck Advisory: Safing Portmaster before 2.2.5 Unauthenticated Forced Downgrade via /api/v1/updates/from-url"}],"tags":["cve.org"],"ingestedAt":"2026-10-16T18:43:08.670Z","slug":"CVE-2026-111664","body":"## Overview\n\nSafing 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.\n\n## Affected\n\n- `portmaster < 2.2.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":24.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}