CVE-2026-63278

Package URLs can be used to exfiltrate arbitrary INI file values and environment variables

MEDIUM
6.7
CVSS Score
Published: September 22, 2026 at 11:10 AM UTC
Updated: September 22, 2026 at 07:21 PM UTC
1 product affected across 1 vendorLibreOffice

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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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 recognise every way of naming the package content provider, so a URL that named it differently still reached the expansion. In fixed versions the package content provider is matched when the URL is checked.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

26.2 ≤ v < < 26.2.526.2
Affected range stops below < 26.2.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.7MEDIUMDocument Fdn.
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-200

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