# CVE-2026-89088: parted: A flaw was found in parted

CVE-2026-89088 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2026-89088, released October 1, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-89088
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 12, 2026

## Description

A flaw was found in parted. A heap-based buffer overflow exists in libparted's file system resizing logic when handling FAT16 volumes. By convincing a user or administrator to resize a specially crafted FAT16 file system image with malformed directory metadata, an attacker can trigger an oversized read into a fixed-size memory buffer. This issue causes memory corruption, resulting in an application crash and a denial of service (DoS).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | parted Debian 14 | 3.8-2 | [DEBIAN-CVE-2026-89088](https://patchblox.com/security/data/fix/linux/debian-cve-2026-89088.md) | Oct 1, 2026 |
| Linux | parted amzn 2023 | 3.4-2.amzn2023.0.3 | [ALAS2023-2026-3189](https://patchblox.com/security/data/fix/linux/alas2023-2026-3189.md) | Nov 7, 2026 |
| Linux | parted sles 15.6 | 3.2-150300.21.6.1 | [SUSE-SU-2026:5117-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5117-1.md) | Nov 7, 2026 |
| Linux | parted sles 15.7 | 3.2-150300.21.6.1 | [SUSE-SU-2026:5117-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5117-1.md) | Nov 7, 2026 |
| Linux | parted-debuginfo amzn 2023 | 3.4-2.amzn2023.0.3 | [ALAS2023-2026-3189](https://patchblox.com/security/data/fix/linux/alas2023-2026-3189.md) | Nov 7, 2026 |
| Linux | parted-debugsource amzn 2023 | 3.4-2.amzn2023.0.3 | [ALAS2023-2026-3189](https://patchblox.com/security/data/fix/linux/alas2023-2026-3189.md) | Nov 7, 2026 |
| Linux | parted-devel amzn 2023 | 3.4-2.amzn2023.0.3 | [ALAS2023-2026-3189](https://patchblox.com/security/data/fix/linux/alas2023-2026-3189.md) | Nov 7, 2026 |

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Data as of 2026-11-08T06:59:42Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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