{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-103387","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-09-30T14:07:47.711Z","datePublished":"2026-09-30T19:45:07.542Z","dateUpdated":"2026-09-30T19:55:03.125Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-09-30T19:45:07.542Z"},"title":"garycourt uri-js Mailto Header mailto.ts URI.parse uncaught exception","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-248","lang":"en","description":"Uncaught Exception"}]}],"affected":[{"vendor":"garycourt","product":"uri-js","versions":[{"version":"4.4.0","status":"affected"},{"version":"4.4.1","status":"affected"}],"cpes":["cpe:2.3:a:garycourt:uri-js:*:*:*:*:*:*:*:*"],"modules":["Mailto Header Handler"]}],"descriptions":[{"lang":"en","value":"A weakness has been identified in garycourt uri-js up to 4.4.1. This affects the function URI.parse of the file src/schemes/mailto.ts of the component Mailto Header Handler. This manipulation of the argument to causes uncaught exception. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":4.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":4.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:C"}}],"timeline":[{"time":"2026-09-30T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-09-30T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-09-30T16:12:55.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"Yu Bao from PayPal Cyber Security Team (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"references":[{"url":"https://vuldb.com/vuln/412124","name":"VDB-412124 | garycourt uri-js Mailto Header mailto.ts URI.parse uncaught exception","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/412124/cti","name":"VDB-412124 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-103387","name":"CVE-2026-103387 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/956810","name":"Submit #956810 | garycourt uri-js 4.4.1 Missing Undefined Check on Mailto URI 'to' Header Parser","tags":["third-party-advisory"]},{"url":"https://github.com/garycourt/uri-js/issues/103","tags":["exploit","issue-tracking"]},{"url":"https://github.com/garycourt/uri-js/","tags":["product"]}],"x_generator":["VulDB PVTS v202609"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-30T19:54:52.854537Z","id":"CVE-2026-103387","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"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":"2026-09-30T19:55:03.125Z"}}]}}