{"id":"CLEANSTART-2025-GV47866","summary":"Improper Certificate Validation vulnerability in LibreOffice allowed \nan attacker to self sign an ODF document, with a signature untrusted by \nthe target, then modify it to change the signature alg...","details":"Security vulnerability affects the libreoffice package. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to self sign an ODF document, with a signature untrusted by the target, then modify it to change the signature algorithm to an invalid (or unknown to LibreOffice) algorithm and LibreOffice would incorrectly pre....","modified":"2026-10-31T16:00:09.248525340Z","published":"2026-10-31T13:52:53.150379Z","upstream":["CVE-2021-25635"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2025/CLEANSTART-2025-GV47866.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2021-25635"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-25635"}],"affected":[{"package":{"name":"libreoffice","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/libreoffice"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.2.2.2-r0"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2025/CLEANSTART-2025-GV47866.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}