{"id":"CVE-2025-34324","details":"GoSign Desktop versions 2.4.0 and earlier use an unsigned update manifest for distributing application updates. The manifest contains package URLs and SHA-256 hashes but is not digitally signed, so its authenticity relies solely on the underlying TLS channel. In affected versions, TLS certificate validation can be disabled when a proxy is configured, allowing an attacker who can intercept network traffic to supply a malicious update manifest and corresponding package with a matching hash. This can cause the client to download and install a tampered update, resulting in arbitrary code execution with the privileges of the GoSign Desktop user on Windows and macOS, or with elevated privileges on some Linux deployments. A local attacker who can modify proxy settings may also abuse this behavior to escalate privileges by forcing installation of a crafted update.","modified":"2026-03-14T15:04:14.541428Z","published":"2025-11-18T17:16:00.923Z","references":[{"type":"WEB","url":"https://infocert.digital/consumer/gosign-suite/"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/gosign-desktop-insecure-update-mechanism-rce"},{"type":"EVIDENCE","url":"https://www.ush.it/2025/11/14/multiple-vulnerabilities-gosign-desktop-remote-code-execution/"},{"type":"EVIDENCE","url":"https://www.ush.it/2025/11/14/vulnerabilita-multiple-gosign-desktop-esecuzione-remota-codice-arbitrario/"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"2.4.1"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-34324.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}