PT-2026-53863 · Fzf · Fzf

Marcin Wyczechowski + 1 · Published 2026-06-30 · Updated 2026-06-30 · CVE-2026-53432

NVD

CVSS v4.0

5.6

Medium

Base vector

AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2026-53432

Affected Products

Fzf

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-53432 · Security Note
• https://github.com/junegunn/fzf · Note
• https://github.com/junegunn/fzf/commit/ccedd064ca56921a4235219516b3d834f60e7b91 · Note
• https://cert.pl/en/posts/2026/06/CVE-2026-53432 · Note