Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-63267— LFI and GET SSRF via calcext:data-mappings and csv provider

Quick assessment

Affected
The Document Foundation LibreOffice
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LibreOffice Calc 允许将单元格区域链接到外部 CSV 数据源，并且该链接会被保存到文档中。在文档加载时，此类链接会被自动获取，因此打开文档时可能会将本地文件读取到电子表格中，或者向文档指定的主机发起网络请求。在修复后的版本中，外部数据链接的更新行为与其他电子表格链接一样，受统一的链接更新控制机制管理。

CVSS 6.7 · Medium
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-63267

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
LFI and GET SSRF via calcext:data-mappings and csv provider
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
The Document Foundation LibreOffice 26.2 ~ < 26.2.5 -

II. Public POCs for CVE-2026-63267

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-63267

请登录查看更多情报信息。

Other References for CVE-2026-63267 (1)

Same Patch Batch · The Document Foundation · 2026-10-05 · 6 CVEs total

CVE-2026-63277 8.5 HIGH RCE via calcext:data-mappings, sql provider and jdbc connector
CVE-2026-63266 6.8 MEDIUM Arbitrary file write via calcext:data-mappings, sql provider and Firebird backup functiona
CVE-2026-63270 6.7 MEDIUM Environment/ini-file leaks
CVE-2026-63269 6.7 MEDIUM LFI and GET SSRF via GStreamer and HLS playlists
CVE-2026-63268 6.7 MEDIUM LFI via calcext:data-mappings, sql provider and sdbc:flat:file:// db href

IV. Related Vulnerabilities

Same product: LibreOffice
Same vendor: The Document Foundation
Same weakness: CWE-918

V. Comments for CVE-2026-63267

No comments yet

Leave a comment