# CVE-2026-41034

> Vulnerability · severity: **MEDIUM** (CVSS 5).

## 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.

## Key facts

- **CVE ID:** CVE-2026-41034
- **Published:** 2026-04-16
- **CVSS severity:** MEDIUM
- **CVSS base score:** 5
- **CWE codes:** CWE-125

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41034

## Citation

> AI Analytics. CVE-2026-41034. Retrieved 2026-08-19 from https://api.ai-analytics.org/cve/CVE-2026-41034. Derived from NIST NVD. Licensed CC0.

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