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CVE-2026-53432— Integer Overflow in fzf

Quick assessment

Affected
fzf fzf
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

fzf fzf是fzf个人开发者的一款通用命令行模糊搜索工具。 fzf 0.73.1之前版本存在数字错误漏洞，该漏洞源于FuzzyMatchV2函数中的整数溢出问题，当输入行长度约为2,200,000字节且模式长度为999字节时发生溢出，导致Go运行时检测到无效的切片边界并立即终止进程，造成崩溃。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.42% · P35

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
fzf fzf < 0.73.1 affected
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I. Basic Information for CVE-2026-53432

Vulnerability Information
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Vulnerability Title
Integer Overflow in fzf
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
fzf 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
fzf fzf是fzf个人开发者的一款通用命令行模糊搜索工具。 fzf 0.73.1之前版本存在数字错误漏洞，该漏洞源于FuzzyMatchV2函数中的整数溢出问题，当输入行长度约为2,200,000字节且模式长度为999字节时发生溢出，导致Go运行时检测到无效的切片边界并立即终止进程，造成崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
fzf fzf 0 ~ 0.73.1 -

II. Public POCs for CVE-2026-53432

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III. Intelligence Information for CVE-2026-53432

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Patches & Fixes for CVE-2026-53432 (1)

Security Blog Posts for CVE-2026-53432 (1)

IV. Related Vulnerabilities

Same product: fzf
Same vendor: fzf
Same weakness: CWE-190

V. Comments for CVE-2026-53432

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