{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93649","assignerOrgId":"e51fbebd-6053-4e49-959f-1b94eeb69a2c","state":"PUBLISHED","assignerShortName":"eclipse","dateReserved":"2026-09-18T12:30:22.439Z","datePublished":"2026-10-15T13:28:42.590Z","dateUpdated":"2026-10-16T18:46:25.952Z"},"containers":{"cna":{"providerMetadata":{"orgId":"e51fbebd-6053-4e49-959f-1b94eeb69a2c","shortName":"eclipse","dateUpdated":"2026-10-15T13:28:42.590Z"},"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-494","description":"CWE-494","type":"CWE"}]},{"descriptions":[{"lang":"en","cweId":"CWE-601","description":"CWE-601","type":"CWE"}]}],"affected":[{"vendor":"Eclipse Foundation","product":"Adoptium Temurin","versions":[{"status":"affected","version":"0","lessThan":"1f9753c","versionType":"git"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"In the Eclipse Adoptium website (adoptium.net), in every deployment built from commit 0b24ea1 (2025-06-18) up to the fix in commit cbb53cf (2026-09-24), the post-download page /[locale]/download takes a download URL from the \"link\" query parameter and automatically navigates to it with a meta http-equiv=\"refresh\". The URL is checked against a list of trusted prefixes using String.startsWith() on the raw string, while the browser applies RFC 3986 dot-segment normalisation before navigating, so a value such as https://github.com/adoptium/temurin/../../attacker/malware/releases/download/v1/jdk.exe passes the check but resolves to an attacker-controlled repository. A victim who follows a crafted adoptium.net link is shown the genuine \"Thank you for downloading Eclipse Temurin\" page while their browser downloads a binary of the attacker's choosing","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>In the Eclipse Adoptium website (adoptium.net), in every deployment built from commit 0b24ea1 (2025-06-18) up to the fix in commit cbb53cf (2026-09-24), the post-download page /[locale]/download takes a download URL from the \"link\" query parameter and automatically navigates to it with a meta http-equiv=\"refresh\". The URL is checked against a list of trusted prefixes using String.startsWith() on the raw string, while the browser applies RFC 3986 dot-segment normalisation before navigating, so a value such as https://github.com/adoptium/temurin/../../attacker/malware/releases/download/v1/jdk.exe passes the check but resolves to an attacker-controlled repository. A victim who follows a crafted adoptium.net link is shown the genuine \"Thank you for downloading Eclipse Temurin\" page while their browser downloads a binary of the attacker's choosing</p>"}]}],"references":[{"url":"https://github.com/adoptium/adoptium.net/security/advisories/GHSA-f228-m952-5r6w#event-1046947"},{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/313"},{"url":"https://github.com/adoptium/adoptium.net/commit/cbb53cf4a41f068a70902217473d7e2fe5d6c6ad"}],"credits":[{"lang":"en","value":"Eclipse Foundation Security Team","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-16T18:46:21.618854Z","id":"CVE-2026-93649","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":"2026-10-16T18:46:25.952Z"}}]}}