CVE-2026-63268Network attack vectorHinoki check available

Local file disclosure via restored SQL data mappings

Published Oct 5, 2026 · Updated Oct 5, 2026

Local file inclusion in LibreOffice Calc 26.2 before 26.2.5 allows attackers to read local text files through crafted spreadsheets. When Calc restores a document's SQL data mapping, its flat-file database reference treats a local folder as a database and imports text-file contents into the sheet. A user must open the crafted document, and the files must be readable by that user's LibreOffice process; the advisory does not establish automatic transmission to an attacker.

CVSS severityUnavailable
Unscored
EPSS probability0.12%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Get started

Summary

What happened

Local file inclusion in LibreOffice Calc 26.2 before 26.2.5 allows attackers to read local text files through crafted spreadsheets. When Calc restores a document's SQL data mapping, its flat-file database reference treats a local folder as a database and imports text-file contents into the sheet. A user must open the crafted document, and the files must be readable by that user's LibreOffice process; the advisory does not establish automatic transmission to an attacker.

The record

CVE
CVE-2026-63268
Published
Oct 5, 2026
Updated
Oct 5, 2026
Vendor
The Document Foundation
Product
LibreOffice
Classifications
T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=26.2 << 26.2.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Document Foundation · LibreOfficeversion=26.2 << 26.2.5

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Get started to see how Hinoki identifies affected software and validates exploitability in your environment.

Get started