Vulnary
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Critical· 9.8

CVE-2026-71805

An attacker can upload any file to the server and place it outside the intended directory, potentially allowing them to execute malicious code. The flaw exists in LZ-litchi 1.0.0 and is triggered by the directory parameter in a file upload request. It is rated critical due to the ability to write arbitrary files without authentication.

publishedSep 9, 2026
last modifiedSep 10, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
30th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Oct 25, 2026

No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.

01

Who is affected

LZ-litchi 1.0.0 (no other versions listed).

02

Real-world impact

An attacker could place malicious files on the server, potentially leading to remote code execution, data theft, or service disruption.

03

Why this severity

The CVSS score of 9.8 reflects that the vulnerability is exploitable over the network with no authentication or user interaction, and it allows complete compromise of confidentiality, integrity, and availability.

04

What to do about it

no official fix yet

No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.

No fix documented in sources

05

Timeline

06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →