{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-15075","assignerOrgId":"e51fbebd-6053-4e49-959f-1b94eeb69a2c","state":"PUBLISHED","assignerShortName":"eclipse","dateReserved":"2026-07-08T15:22:44.892Z","datePublished":"2026-07-14T08:15:53.650Z","dateUpdated":"2026-07-14T12:18:54.815Z"},"containers":{"cna":{"providerMetadata":{"orgId":"e51fbebd-6053-4e49-959f-1b94eeb69a2c","shortName":"eclipse","dateUpdated":"2026-07-14T08:15:53.650Z"},"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]},{"descriptions":[{"lang":"en","cweId":"CWE-346","description":"CWE-346: Origin Validation Error","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-60","descriptions":[{"lang":"en","value":"CAPEC-60: HTTP Response Smuggling"}]}],"affected":[{"vendor":"Eclipse Foundation","product":"Eclipse Vert.x","repo":"https://github.com/eclipse-vertx/vert.x","versions":[{"status":"affected","version":"4.0.0","lessThanOrEqual":"4.5.29","versionType":"semver"},{"status":"affected","version":"5.0.0","lessThanOrEqual":"5.1.4","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"In Eclipse Vert.x versions up to and including 4.5.29 (4.x branch) and 5.1.4 (5.x branch), DefaultRedirectHandler (vertx-core) propagates all request headers as-is across cross-origin HTTP 30x redirects. Only Content-Length is stripped; no origin comparison (scheme, host, port) is performed before copying headers to the redirect target.\nAs a result, credential headers, including Authorization, Cookie, Proxy-Authorization, and arbitrary custom headers such as X-API-Token, are forwarded to the redirect destination without the caller's knowledge.\n\n\n\n\nAn attacker who can cause a Vert.x HttpClient to issue a request that is redirected to an attacker-controlled host (for example, by supplying a URL to a webhook dispatcher, image proxy, or microservice URL fetcher) can capture bearer tokens, basic-auth credentials, session cookies, and API keys attached to the original request.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>In Eclipse Vert.x versions up to and including 4.5.29 (4.x branch) and 5.1.4 (5.x branch), <code>DefaultRedirectHandler</code> (vertx-core) propagates all request headers as-is across cross-origin HTTP 30x redirects. Only <code>Content-Length</code> is stripped; no origin comparison (scheme, host, port) is performed before copying headers to the redirect target.\nAs a result, credential headers, including <code>Authorization</code>, <code>Cookie</code>, <code>Proxy-Authorization</code>, and arbitrary custom headers such as <code>X-API-Token</code>, are forwarded to the redirect destination without the caller's knowledge.</p>\n<p>An attacker who can cause a Vert.x <code>HttpClient</code> to issue a request that is redirected to an attacker-controlled host (for example, by supplying a URL to a webhook dispatcher, image proxy, or microservice URL fetcher) can capture bearer tokens, basic-auth credentials, session cookies, and API keys attached to the original request.</p>"}]}],"references":[{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/161"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","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":8.2,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}}],"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-14T12:18:43.429169Z","id":"CVE-2026-15075","options":[{"Exploitation":"none"},{"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":"2026-07-14T12:18:54.815Z"}}]}}