{"id":"CVE-2026-93649","state":"PUBLISHED","title":"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 /[lo","description":"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","publishedAt":"2026-10-15T13:28:42.590Z","updatedAt":"2026-10-16T18:46:25.952Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","source":"CISA-ADP"},"assigner":"eclipse","products":["Eclipse Foundation Adoptium Temurin"],"affected":[{"vendor":"Eclipse Foundation","product":"Adoptium Temurin","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1f9753c","versionType":"git"}]}],"references":["https://github.com/adoptium/adoptium.net/security/advisories/GHSA-f228-m952-5r6w#event-1046947","https://gitlab.eclipse.org/security/cve-assignment/-/work_items/313","https://github.com/adoptium/adoptium.net/commit/cbb53cf4a41f068a70902217473d7e2fe5d6c6ad"],"weaknesses":["CWE-494","CWE-601"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93649.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93649","state":"PUBLISHED","datePublished":"2026-10-15T13:28:42.590Z","dateUpdated":"2026-10-16T18:46:25.952Z","assignerShortName":"eclipse","assignerOrgId":"e51fbebd-6053-4e49-959f-1b94eeb69a2c","dateReserved":"2026-09-18T12:30:22.439Z"},"containers":{"cna":{"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"}],"affected":[{"vendor":"Eclipse Foundation","product":"Adoptium Temurin","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1f9753c","versionType":"git"}]}],"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"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-494","lang":"en","description":"CWE-494","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-601","lang":"en","description":"CWE-601","type":"CWE"}]}],"providerMetadata":{"shortName":"eclipse","orgId":"e51fbebd-6053-4e49-959f-1b94eeb69a2c","dateUpdated":"2026-10-15T13:28:42.590Z"},"credits":[{"lang":"en","value":"Eclipse Foundation Security Team","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-16T18:46:25.952Z"}}]}}}