{"id":"CVE-2026-0919","state":"PUBLISHED","title":"Unauthenticated Denial of Service via Oversized URL in HTTP Parser on TP-Link Tapo C210, C220 & C520WS","description":"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.","publishedAt":"2026-01-27T17:52:39.170Z","updatedAt":"2026-04-29T16:14:38.524Z","severity":{"score":7.1,"label":"High","version":"4.0","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","source":"TPLink"},"assigner":"TPLink","products":["TP-Link Systems Inc. Tapo C220 v1","TP-Link Systems Inc. Tapo C520WS v2","TP Link Systems Inc. Tapo C210 v3"],"affected":[{"vendor":"TP-Link Systems Inc.","product":"Tapo C220 v1","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.4.2 Build 251112","versionType":"custom"}],"modules":["http service"]},{"vendor":"TP-Link Systems Inc.","product":"Tapo C520WS v2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.2.3 Build 251114","versionType":"custom"}]},{"vendor":"TP Link Systems Inc.","product":"Tapo C210 v3","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.2.6 Build 260328","versionType":"custom"}]}],"references":["https://www.tp-link.com/us/support/download/tapo-c220/v1.60/","https://www.tp-link.com/en/support/download/tapo-c220/v1/","https://www.tp-link.com/us/support/download/tapo-c520ws/v2/","https://www.tp-link.com/en/support/download/tapo-c520ws/v2/","https://www.tp-link.com/us/support/faq/4923/","https://www.tp-link.com/us/support/download/tapo-c210/v3/","https://www.tp-link.com/en/support/download/tapo-c210/v3/"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/0xxx/CVE-2026-0919.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-0919","state":"PUBLISHED","datePublished":"2026-01-27T17:52:39.170Z","dateUpdated":"2026-04-29T16:14:38.524Z","assignerShortName":"TPLink","assignerOrgId":"f23511db-6c3e-4e32-a477-6aa17d310630","dateReserved":"2026-01-13T19:44:02.718Z"},"containers":{"cna":{"title":"Unauthenticated Denial of Service via Oversized URL in HTTP Parser on TP-Link Tapo C210, C220 & C520WS","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"TP-Link Systems Inc.","product":"Tapo C220 v1","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.4.2 Build 251112","versionType":"custom"}],"modules":["http service"]},{"vendor":"TP-Link Systems Inc.","product":"Tapo C520WS v2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.2.3 Build 251114","versionType":"custom"}]},{"vendor":"TP Link Systems Inc.","product":"Tapo C210 v3","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.2.6 Build 260328","versionType":"custom"}]}],"references":[{"url":"https://www.tp-link.com/us/support/download/tapo-c220/v1.60/","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tapo-c220/v1/","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/download/tapo-c520ws/v2/","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tapo-c520ws/v2/","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/faq/4923/","tags":["vendor-advisory"]},{"url":"https://www.tp-link.com/us/support/download/tapo-c210/v3/","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tapo-c210/v3/","tags":["patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":7.1,"vectorString":"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"CWE-20 Improper Input Validation","type":"CWE"}]}],"providerMetadata":{"shortName":"TPLink","orgId":"f23511db-6c3e-4e32-a477-6aa17d310630","dateUpdated":"2026-04-29T16:14:38.524Z"},"impacts":[{"capecId":"CAPEC-153","descriptions":[{"lang":"en","value":"CAPEC-153 Input Data Manipulation"}]}],"credits":[{"lang":"en","value":"Diogo Almeida @NeWbie","type":"finder"},{"lang":"en","value":"Giuseppe Signorelli","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-27T18:08:59.269424Z","id":"CVE-2026-0919","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-27T18:10:00.577Z"}}]}}}