CVE-2026-63267

unknown

Published 2026-10-05 · Modified 2026-10-05

Discuss on Community Propose mitigation

CVSS v3

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CVSS v4 NEW

6.7

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

VIR risk

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Description

LibreOffice Calc can link a cell range to an external csv data source, and the link is saved in the document. Such a link was fetched while the document loaded, so opening a document could read a local file into the sheet, or make a request to a host of the document's choosing. In fixed versions external data links are updated under the same link update control as other links in a spreadsheet.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2026-63267 NameCVE-2026-63267 DescriptionLFI and GET SSRF via calcext:data-mappings and csv provider SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) Vulnerable and fixed packages The table below lists information on source packages. Source PackageReleaseVersionStatus libreoffice…

CVE-2026-63267

Name	CVE-2026-63267
Description	LFI and GET SSRF via calcext:data-mappings and csv provider
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libreoffice (PTS)	bookworm	4:7.4.7-1+deb12u14	vulnerable
	bookworm (security)	4:7.4.7-1+deb12u13	vulnerable
	trixie	4:25.2.3-2+deb13u6	vulnerable
	trixie (security)	4:25.2.3-2+deb13u7	vulnerable
	forky	4:26.8.0.3-2	fixed
	sid	4:26.8.1.1-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libreoffice	source	(unstable)	4:26.2.5.2-1

Notes

https://www.libreoffice.org/security/#cve-2026-63267

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

https://www.libreoffice.org/security/#cve-2026-63267

OS impact

Debian Mixed 4 releases

Version	Status	Fixed in
trixie	Affected	—
sid	Fixed	`4:26.2.5.2-1`
forky	Fixed	`4:26.2.5.2-1`
bookworm	Affected	—

References

CWEs

CWE-200 CWE-918

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.