CVE & CISA-KEV Catalog

CVE-2026-71805

CRITICAL
9.8
CVSS v3
NVD

Description

An arbitrary file upload and path traversal vulnerability exists in LZ-litchi 1.0.0. Unauthenticated remote attackers can upload arbitrary files and write them outside the intended storage directory via the directory parameter in POST /app-api/infra/file/upload.

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.36%probability of exploitation in 30 days
30thpercentile

Low risk: more likely to be exploited than 30% of all known CVEs.

References

Other references1

Related Vulnerabilities

Other CWE-434 (Unrestricted File Upload) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2017-12617High8.1100%KEVFix
CVE-2018-15961Critical9.8100%KEV-
CVE-2021-31207Medium6.6100%KEV + RansomFix
CVE-2017-12615High8.1100%KEV + Ransom-
CVE-2025-31324Critical10.0100%KEV + Ransom-
CVE-2024-50623Critical9.899%KEV + RansomFix

Common questions

How do I fix CVE-2026-71805?

No published fix for CVE-2026-71805 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

Is CVE-2026-71805 being actively exploited?

Not that we know of. CVE-2026-71805 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.36% is the estimated probability that it will be exploited in the next 30 days. That is higher than 30% of all scored CVEs.

How severe is CVE-2026-71805?

CVE-2026-71805 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-10.