Description
URLs could be constructed which expanded environment variable or INI file values, so potentially sensitive information could be exfiltrated to a remote server on opening a document containing such links. The check added for CVE-2024-12426 did not cover every place a document can supply a URL. XForms instance data and the Calc csv and sql data providers still reached the expansion. In fixed versions these places refuse URLs with internal schemes when the URL comes from the document.
Published: 2026-10-05
Score: 6.7 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DSA Debian DSA DSA-6543-1 libreoffice security update
History

Tue, 06 Oct 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared The Document Foundation
The Document Foundation libreoffice
Vendors & Products The Document Foundation
The Document Foundation libreoffice

Mon, 05 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 05 Oct 2026 11:30:00 +0000

Type Values Removed Values Added
Description URLs could be constructed which expanded environment variable or INI file values, so potentially sensitive information could be exfiltrated to a remote server on opening a document containing such links. The check added for CVE-2024-12426 did not cover every place a document can supply a URL. XForms instance data and the Calc csv and sql data providers still reached the expansion. In fixed versions these places refuse URLs with internal schemes when the URL comes from the document.
Title Environment/ini-file leaks
Weaknesses CWE-200
References
Metrics cvssV4_0

{'score': 6.7, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N'}


Subscriptions

The Document Foundation Libreoffice
cve-icon MITRE

Status: PUBLISHED

Assigner: Document Fdn.

Published:

Updated: 2026-10-05T12:40:16.322Z

Reserved: 2026-07-16T08:17:05.511Z

Link: CVE-2026-63270

cve-icon Vulnrichment

Updated: 2026-10-05T12:40:12.266Z

cve-icon NVD

Status : Deferred

Published: 2026-10-05T12:17:11.113

Modified: 2026-10-06T15:03:59.427

Link: CVE-2026-63270

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-06T20:45:05Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor