CVE-2026-0919 HIGH

CVE-2026-0919: Unauthenticated Denial of Service via Oversized URL in HTTP Parser on TP-Link Tapo C210, C220 & C520WS

Vendor Tp-Link Systems Inc.
Product Tapo C220 v1
Weakness CWE-20 · Input validation
Published January 27, 2026
Last update April 29, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

The HTTP parser of Tapo C210 v3, C220 v1 and C520WS v2 cameras improperly handles requests containing an excessively long URL path. An invalid‑URL error path continues into cleanup code that assumes allocated buffers exist, leading to a crash and service restart. An unauthenticated attacker can force repeated service crashes or device reboots, causing denial of service.

Key dates

02Disclosure timeline

January 27, 2026 CVE published
April 29, 2026 Record updated