undici vulnerable to cookie attribute injection via unsanitized domain and unparsed setCookie fields
CVE-2026-16729
Summary
Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Products covered
Microsoft SharePoint Server Subscription Edition
Remediation
Install KB5002927.
Vendor-listed fixes
16.0.20326.20190
CVEs in this advisory 1
Update history
What changed in later vendor updates
SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.
- Removed affected products: Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019.
Updates
- Published by Microsoft Security Response Center
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.
- Confirmed at the source
Our collector saw this advisory during a later source check.