https://db.gcve.eu/rss/recent/all/10 Most recent entries from all 2026-09-30T17:04:03.846413+00:00 Vulnerability-Lookup info@gcve.eu python-feedgen Contains only the most 10 recent entries. https://db.gcve.eu/vuln/cve-2021-25636 CVE-2021-25636 — Incorrect trust validation of signature with ambiguous KeyInfo children 2026-09-30T17:04:03.861485+00:00

Affected: The Document Foundation LibreOffice

LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to create a digitally signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the document to contain both "X509Data" and "KeyValue" children of the "KeyInfo" tag, which when opened caused LibreOffice to verify using the "KeyValue" but to report verification with the unrelated "X509Data" value. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.5.

 https://db.gcve.eu/vuln/usn-5330-1 USN-5330-1 — libreoffice vulnerability 2026-09-30T17:04:03.862103+00:00

Affected: Ubuntu:18.04:LTS: libreoffice, Ubuntu:20.04:LTS: libreoffice

It was discovered that LibreOffice incorrectly handled digital signatures. An attacker could possibly use this issue to create a specially crafted document that would display a validly signed indicator, contrary to expectations.