{"id":"CVE-2026-116196","aliases":["ALPINE-CVE-2026-116196","BIT-rclone-2026-116196","DEBIAN-CVE-2026-116196","EUVD-2026-109454","GHSA-fq8p-rg92-hj4q","GHSA-gpw7-77cq-9f72","UBUNTU-CVE-2026-116196"],"status":"published","title":"Rclone before v1.75.2 B2 Credential Leak on Redirect via --b2-download-url","description":"Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redirect to capture the cleartext B2 token, or receive cross-host redirects disclosing SSE-C customer encryption keys.","severity":{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00063,"percentile":0.00009,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-319"],"published":"2026-10-25T13:20:29Z","modified":"2026-11-04T17:24:02Z","fixes":[{"ecosystem":"Alpine:v3.24","package":"rclone","fixed_in":["1.75.2-r0"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"rclone","fixed_in":["1.75.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.24","package":"rclone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.75.2-r0"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"rclone","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.75.2"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"rclone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.60.1+dfsg-2","1.60.1+dfsg-3","1.60.1+dfsg-4","1.65.0+dfsg-1","1.65.0+dfsg-2","1.69.3+dfsg-1","1.69.3+dfsg-2","1.69.3+dfsg-3","1.75.2-1","1.75.2-2"]},{"source":"osv","ecosystem":"Debian:13","package":"rclone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.60.1+dfsg-4","1.65.0+dfsg-1","1.65.0+dfsg-2","1.69.3+dfsg-1","1.69.3+dfsg-2","1.69.3+dfsg-3","1.75.2-1","1.75.2-2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"rclone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.36-3","1.36-3ubuntu0.1","1.36-3ubuntu0.2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"rclone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.47.0+ex1-6","1.47.0+ex1-7","1.49.5-2","1.49.5-3","1.50.2-2","1.50.2-2ubuntu0.1","1.50.2-2ubuntu0.2","1.50.2-2ubuntu0.2+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"rclone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.53.3-1","1.53.3-2","1.53.3-4","1.53.3-4ubuntu1","1.53.3-4ubuntu1.22.04.1","1.53.3-4ubuntu1.22.04.2","1.53.3-4ubuntu1.22.04.3","1.53.3-4ubuntu1.22.04.3+esm1","1.53.3-4ubuntu1.22.04.4","1.53.3-4ubuntu1.22.04.4+esm1","1.53.3-4ubuntu1.22.04.5","1.53.3-4ubuntu1.22.04.5+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"rclone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.60.1+dfsg-2build1","1.60.1+dfsg-3","1.60.1+dfsg-3ubuntu0.24.04.1","1.60.1+dfsg-3ubuntu0.24.04.2","1.60.1+dfsg-3ubuntu0.24.04.3","1.60.1+dfsg-3ubuntu0.24.04.4","1.60.1+dfsg-3ubuntu0.24.04.4+esm1","1.60.1+dfsg-3ubuntu0.24.04.5","1.60.1+dfsg-3ubuntu0.24.04.5+esm1","1.60.1+dfsg-3ubuntu0.24.04.6","1.60.1+dfsg-3ubuntu0.24.04.6+esm1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"rclone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.60.1+dfsg-4ubuntu3","1.69.3+dfsg-3","1.69.3+dfsg-3ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:26.04:LTS","package":"rclone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.60.1+dfsg-4ubuntu2","1.60.1+dfsg-4ubuntu3","1.60.1+dfsg-4ubuntu3.1","1.60.1+dfsg-4ubuntu3.1+esm1","1.60.1+dfsg-4ubuntu3.2","1.60.1+dfsg-4ubuntu3.2+esm1"]}],"products":[{"vendor":"rclone","product":"rclone"}],"references":[{"url":"https://github.com/rclone/rclone/security/advisories/GHSA-gpw7-77cq-9f72","tags":["vendor-advisory","Vendor Advisory","advisory","report"]},{"url":"https://www.vulncheck.com/advisories/rclone-before-1.75.2-b2-credential-leak-on-redirect-via-b2-download-url","tags":["third-party-advisory","Third Party Advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116196","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-fq8p-rg92-hj4q"},{"url":"https://security.alpinelinux.org/vuln/CVE-2026-116196","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116196.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-116196","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-116196","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-116196","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-116196","title":"Rclone before v1.75.2 B2 Credential Leak on Redirect via --b2-download-url","description":"Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redirect to capture the cleartext B2 token, or receive cross-host redirects disclosing SSE-C customer encryption keys.","status":"published","published":"2026-10-25T13:20:29.804Z","modified":"2026-11-04T17:24:02.869Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-319"],"updated_at":"2026-11-04T19:06:09.086833Z"}],"euvd":[{"id":"EUVD-2026-109454","description":"Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redirect to capture the cleartext B2 token, or receive cross-host redirects disclosing SSE-C customer encryption keys.","status":"published","published":"2026-10-25T13:20:29Z","modified":"2026-11-04T17:24:02Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-04T18:12:44.477339Z"}],"ghsa":[{"id":"GHSA-fq8p-rg92-hj4q","title":"Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks...","description":"Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redirect to capture the cleartext B2 token, or receive cross-host redirects disclosing SSE-C customer encryption keys.","status":"published","published":"2026-10-25T15:32:21Z","modified":"2026-10-25T15:32:32Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-319"],"updated_at":"2026-11-02T15:14:22.728467Z"}],"nvd":[{"id":"CVE-2026-116196","description":"Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redirect to capture the cleartext B2 token, or receive cross-host redirects disclosing SSE-C customer encryption keys.","status":"published","published":"2026-10-25T14:17:00.133Z","modified":"2026-11-04T18:17:38.823Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-319"],"updated_at":"2026-11-04T20:08:22.597134Z"}],"osv":[{"id":"ALPINE-CVE-2026-116196","description":"Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redirect to capture the cleartext B2 token, or receive cross-host redirects disclosing SSE-C customer encryption keys.","status":"published","published":"2026-10-25T14:17:00.133Z","modified":"2026-11-05T09:30:02.609557597Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-05T13:31:49.170436Z"},{"id":"CVE-2026-116196","title":"Rclone before v1.75.2 B2 Credential Leak on Redirect via --b2-download-url","description":"Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redirect to capture the cleartext B2 token, or receive cross-host redirects disclosing SSE-C customer encryption keys.","status":"published","published":"2026-10-25T13:20:29.804Z","modified":"2026-11-05T21:15:59.025629074Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-319"],"updated_at":"2026-11-05T22:01:21.792402Z"},{"id":"DEBIAN-CVE-2026-116196","description":"Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redirect to capture the cleartext B2 token, or receive cross-host redirects disclosing SSE-C customer encryption keys.","status":"published","published":"2026-10-25T14:17:00.133Z","modified":"2026-11-05T10:00:53.142662635Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-05T13:31:24.64316Z"},{"id":"UBUNTU-CVE-2026-116196","description":"Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redirect to capture the cleartext B2 token, or receive cross-host redirects disclosing SSE-C customer encryption keys.","status":"published","published":"2026-10-25T14:17:00Z","modified":"2026-10-28T17:50:38Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"},{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:56:00.081948Z"},{"id":"BIT-rclone-2026-116196","title":"Rclone before v1.75.2 B2 Credential Leak on Redirect via --b2-download-url","description":"Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redirect to capture the cleartext B2 token, or receive cross-host redirects disclosing SSE-C customer encryption keys.","status":"published","published":"2026-10-29T08:58:42.159Z","modified":"2026-10-29T10:55:56.452217139Z","updated_at":"2026-11-02T15:28:35.111822Z"}]}}