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4 vulnerabilities by fzf
CVE-2026-53433 (GCVE-0-2026-53433)
Vulnerability from nvd – Published: 2026-06-30 12:01 – Updated: 2026-06-30 13:32 X_Open Source
VLAI
Title
Denial of Service in fzf
Summary
fzf is vulnerable to a Denial of Service (DoS) due to inefficient HTTP body processing in the --listen mode due to inefficient HTTP body processing using repeated string concatenation, resulting in quadratic time complexity (O(n²)). A crafted POST request with many small segments can trigger excessive CPU usage during request handling.This allows a single malicious request to monopolize the single‑threaded HTTP server, blocking all other clients and resulting in denial of service.
This issue was fixed in version 0.73.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/06/CVE-2026-53432 | third-party-advisory |
| https://github.com/junegunn/fzf | product |
| https://github.com/junegunn/fzf/commit/7963a2c658… | issue-tracking |
Date Public
2026-06-30 12:01
Credits
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CVE-2026-53432 (GCVE-0-2026-53432)
Vulnerability from nvd – Published: 2026-06-30 12:01 – Updated: 2026-06-30 15:58 X_Open Source
VLAI
Title
Integer Overflow in fzf
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/06/CVE-2026-53432 | third-party-advisory |
| https://github.com/junegunn/fzf | product |
| https://github.com/junegunn/fzf/commit/ccedd064ca… | issue-tracking |
Date Public
2026-06-30 12:00
Credits
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CVE-2026-53433 (GCVE-0-2026-53433)
Vulnerability from cvelistv5 – Published: 2026-06-30 12:01 – Updated: 2026-06-30 13:32 X_Open Source
VLAI
Title
Denial of Service in fzf
Summary
fzf is vulnerable to a Denial of Service (DoS) due to inefficient HTTP body processing in the --listen mode due to inefficient HTTP body processing using repeated string concatenation, resulting in quadratic time complexity (O(n²)). A crafted POST request with many small segments can trigger excessive CPU usage during request handling.This allows a single malicious request to monopolize the single‑threaded HTTP server, blocking all other clients and resulting in denial of service.
This issue was fixed in version 0.73.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/06/CVE-2026-53432 | third-party-advisory |
| https://github.com/junegunn/fzf | product |
| https://github.com/junegunn/fzf/commit/7963a2c658… | issue-tracking |
Date Public
2026-06-30 12:01
Credits
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CVE-2026-53432 (GCVE-0-2026-53432)
Vulnerability from cvelistv5 – Published: 2026-06-30 12:01 – Updated: 2026-06-30 15:58 X_Open Source
VLAI
Title
Integer Overflow in fzf
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/06/CVE-2026-53432 | third-party-advisory |
| https://github.com/junegunn/fzf | product |
| https://github.com/junegunn/fzf/commit/ccedd064ca… | issue-tracking |
Date Public
2026-06-30 12:00
Credits
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