{"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"}}]}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Adoptium Temurin", "vendor": "Eclipse Foundation", "versions": [{"lessThan": "1f9753c", "status": "affected", "version": "0", "versionType": "git"}]}], "source": "emo@eclipse.org"}], "cveTags": [], "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"}], "id": "CVE-2026-93649", "lastModified": "2026-10-16T19:17:44.900", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-93649", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T18:46:21.618854Z", "version": "2.0.3"}}]}, "published": "2026-10-15T14:17:30.107", "references": [{"source": "emo@eclipse.org", "url": "https://github.com/adoptium/adoptium.net/commit/cbb53cf4a41f068a70902217473d7e2fe5d6c6ad"}, {"source": "emo@eclipse.org", "url": "https://github.com/adoptium/adoptium.net/security/advisories/GHSA-f228-m952-5r6w#event-1046947"}, {"source": "emo@eclipse.org", "url": "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/313"}], "sourceIdentifier": "emo@eclipse.org", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-494"}, {"lang": "en", "value": "CWE-601"}], "source": "emo@eclipse.org", "type": "Secondary"}]}

{}

{"created": "2026-10-16T21:45:14.813000+00:00", "title": "Adoptium Website Vulnerable to Redirection-based Download of Malicious Binary", "updated": "2026-10-16T21:45:14.813005+00:00", "vendors": []}