CVE-2026-46499

Collabora Online is a collaborative online office suite based on LibreOffice technology. Prior to 24.04.18 and 25.04.11, several document operations delegated to `LibreOfficeKit` in the per-document kit process fail to enforce a session's read-only state. A read-only user, such as a viewer-role WOPI user, can send crafted `WebSocket` messages to execute document-mutating `UNO` commands and dialog operations despite the read-only interface. The changes can mislead co-viewers within the live session, or an authorized editor sharing the session can unknowingly save the modifications. The read-only attacker cannot save the document directly, and changes are discarded when the kit session ends unless an authorized editor saves them. This issue is fixed in versions 24.04.18 and 25.04.11.

• CWE-863

• https://github.com/CollaboraOnline/online/security/advisories/GHSA-27j2-3cqv-cc5q

Published

Oct 30, 2026

Last Modified

Nov 5, 2026

Status

Awaiting Analysis

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-46492md-fileserver allows for local viewing of markdown files in …6.1
• CVE-2026-46493HAX CMS helps manage microsite universe with PHP or NodeJs b…7.5
• CVE-2026-46495OpenDJ is an LDAPv3 compliant directory service. Prior to 5.…9.2
• CVE-2026-46496HAX CMS helps manage microsite universe with PHP or NodeJs b…9.3
• CVE-2026-46497Crawlee is a web scraping and browser automation library. Fr…2.3
• CVE-2026-46498Open Access Management (OpenAM) is an access management solu…7.6
• CVE-2026-4650The FundPress – WordPress Donation Plugin for WordPress is v…5.3
• CVE-2026-46508Turborepo is a high-performance build system for JavaScript …7.8
• CVE-2026-46509deepobj provides get, set, delete deep objects in javascript…8.2
• CVE-2026-46510form-data-objectizer converts FormData to object. Prior to 1…8.2
• CVE-2026-46511HAX CMS helps manage microsite universe with PHP or NodeJs b…8.7
• CVE-2026-46512Frogman provides headless PBX control through MCP and HTTP A…9.9