# CVE-2026-91752: libextractor: GNU libextractor before 1.15 contains a stack-based buffer overflow vulnerability in the process_star_office function...

CVE-2026-91752 is fixed in libextractor on 1 platform by DEBIAN-CVE-2026-91752 (version 1:1.17-1), released September 17, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-91752
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0074
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 15, 2026

## Description

GNU libextractor before 1.15 contains a stack-based buffer overflow vulnerability in the process_star_office function that sizes a variable-length stack array from attacker-controlled OLE2 stream data. Attackers can craft malicious StarOffice documents that allocate up to 4 MB on the stack, causing stack overflow and crashing any application extracting metadata from the document.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libextractor Debian 14 | 1:1.17-1 | [DEBIAN-CVE-2026-91752](https://patchblox.com/security/data/fix/linux/debian-cve-2026-91752.md) | Sep 17, 2026 |

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Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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