{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-104380","assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","state":"PUBLISHED","assignerShortName":"CPANSec","dateReserved":"2026-10-01T22:29:10.271Z","datePublished":"2026-10-06T01:13:14.558Z","dateUpdated":"2026-10-06T13:14:39.875Z"},"containers":{"cna":{"affected":[{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","modules":["Punk"],"packageName":"Punk","packageURL":"pkg:cpan/Punk","programFiles":["include/punk/punk_serve.h"],"programRoutines":[{"name":"ps_serve_one"}],"versions":[{"lessThan":"0.55","status":"affected","version":"0.48","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"Punk versions from 0.48 before 0.55 for Perl route Extended CONNECT requests to any GET route without an Origin check in ps_serve_one.\n\nOn HTTP/2 and HTTP/3 a WebSocket handshake arrives as an Extended CONNECT, which is matched as a GET and so reaches every GET route, API operation and mount. The Origin check runs only when a websocket route matches. On this transport the handler's status is the handshake response, and a 2xx accepts it.\n\nA cross-origin page can open a WebSocket to any path and learn from its open or error event whether that path returns 2xx."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1385","description":"CWE-1385 Missing Origin Validation in WebSockets","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec","dateUpdated":"2026-10-06T01:13:14.558Z"},"references":[{"tags":["patch"],"url":"https://metacpan.org/release/LNATION/Punk-0.55/diff/LNATION/Punk-0.54"},{"tags":["release-notes"],"url":"https://metacpan.org/release/LNATION/Punk-0.55/changes"}],"solutions":[{"lang":"en","value":"Upgrade to Punk 0.55 or later."}],"source":{"discovery":"UNKNOWN"},"title":"Punk versions from 0.48 before 0.55 for Perl route Extended CONNECT requests to any GET route without an Origin check in ps_serve_one","x_generator":{"engine":"cpansec-cna-tool 0.1"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/10/06/1"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-10-06T05:07:59.987Z"}},{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-06T13:14:06.093601Z","id":"CVE-2026-104380","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-06T13:14:39.875Z"}}]}}