PT-2026-33272 · Ascensio · Onlyoffice Document Server

Published 2026-04-16 · Updated 2026-04-16 · CVE-2026-41034

X.com · Cvenew

CVSS v3.1

5.0

Medium

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

CVE-2026-41034 ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion (via pictFmla.cbBufInCtlStm and other vectors), leading to an… https://t.co/Gm5t1YUiVU

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-41034

Affected Products

Onlyoffice Document Server

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-41034 · Security Note
• https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md · Note
• https://twitter.com/CVEnew/status/2044701560790544769 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2044738263139647531 · Twitter Post