Integer Overflow in fzf
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| fzf | fzf | before 0.73.1 | 0.73.1 | Patch available | CNA |
- fzf Vendorfzf Affected before 0.73.1 Fixed in 0.73.1 Patch available CNA
Remediation
- Fix · CNA fzf (fzf) Fixed in 0.73.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
fzf 0.73.1
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-38515 Denial of Service in fzfPriority LOW 26
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-53432
- 2026-10-03 Alias added: GHSA-rrf5-grxg-q8mm
References
More junegunn Fzf vulnerabilities
- TI-2026-38515 Denial of Service in fzf CVSS 4.0MEDIUM 5.7
Sources
- CVE-2026-53432 · CVE Program
- CVE-2026-53432 · NVD
- FIRST EPSS
- GHSA-rrf5-grxg-q8mm · GitHub Advisory Database · CC BY 4.0
- CVE-2026-53432 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences