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.

Routine
CVSS
5.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0022
12th percentile

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

ProductFixed inFixReleased
Linux
parted · Debian 14 3.8-2 DEBIAN-CVE-2026-89088 Oct 1, 2026
parted · amzn 2023 3.4-2.amzn2023.0.3 ALAS2023-2026-3189 Nov 7, 2026
parted · sles 15.6 3.2-150300.21.6.1 SUSE-SU-2026:5117-1 Nov 7, 2026
parted · sles 15.7 3.2-150300.21.6.1 SUSE-SU-2026:5117-1 Nov 7, 2026
parted-debuginfo · amzn 2023 3.4-2.amzn2023.0.3 ALAS2023-2026-3189 Nov 7, 2026
parted-debugsource · amzn 2023 3.4-2.amzn2023.0.3 ALAS2023-2026-3189 Nov 7, 2026
parted-devel · amzn 2023 3.4-2.amzn2023.0.3 ALAS2023-2026-3189 Nov 7, 2026

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