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CVE-2026-41034: ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion (via...

MEDIUM CVSS 5.5

Published: April 16, 2026 | Last Modified: April 16, 2026

Description

ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion (via pictFmla.cbBufInCtlStm and other vectors), leading to an information leak and ASLR bypass.

Ghostwire Analysis — What This Means Practically

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

Security Coverage (2 articles)

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CVE-2026-41034
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CVE-2026-41034 - ONLYOFFICE DocumentServer Untrusted Pointer Dereference Information Leak and ASLR Bypass

References