# CVE-2026-53432: fzf: fzf is vulnerable to Integer Overflow leading to crash in FuzzyMatchV2 function

CVE-2026-53432 is fixed in fzf on 1 platform by DEBIAN-CVE-2026-53432 (version 0.73.1-1), released July 1, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-53432
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0042
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 30, 2026

## Description

fzf is vulnerable to Integer Overflow leading to crash in FuzzyMatchV2 function. When input line length is approximately 2,200,000 bytes and pattern length is 999 bytes, the product overflows. The Go runtime detects the invalid slice bounds and terminates the process immediately with a non-recoverable panic.  This issue was fixed in version 0.73.1.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | fzf Debian 14 | 0.73.1-1 | [DEBIAN-CVE-2026-53432](https://patchblox.com/security/data/fix/linux/debian-cve-2026-53432.md) | Jul 1, 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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