{"id":"CVE-2026-79780","title":"rclone before v1.75.0 fails to sanitize IBM IAM bearer tokens and SSE-C encryption keys during S3 redirect callbacks, allowing credentials to be preserved across scheme or host changes","summary":"rclone before v1.75.0 fails to sanitize IBM IAM bearer tokens and SSE-C encryption keys during S3 redirect callbacks, allowing credentials to be preserved across scheme or host changes. Attackers observing network traffic from a trusted …","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-200","CWE-201"],"vendor":"rclone","product":"github.com/rclone/rclone","affected":["github.com/rclone/rclone < 1.75.0"],"patched":["github.com/rclone/rclone 1.75.0"],"published":"2026-08-25","updated":"2026-09-10","sourceUpdated":"2026-09-10T20:46:19.780","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-79780","references":[{"url":"https://github.com/rclone/rclone/security/advisories/GHSA-8mxv-9xhp-86h4","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/rclone-before-credential-exposure-via-s3-redirect","label":"disclosure@vulncheck.com"},{"url":"https://github.com/rclone/rclone/security/advisories/GHSA-8mxv-9xhp-86h4","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://github.com/rclone/rclone/commit/7543a7a87884aca957590b20b0714078d51af87b"},{"url":"https://github.com/rclone/rclone/commit/9328763d1b73db71e97c0332b19e3747abeb9191"},{"url":"https://github.com/rclone/rclone"},{"url":"https://github.com/rclone/rclone/releases/tag/v1.75.0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-79780.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-79780"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2523578"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-79780"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-79780"}],"tags":["nvd","osv","go","csaf","vex","red-hat"],"epss":0.00147,"epssPercentile":0.03891,"aliases":["GHSA-8mxv-9xhp-86h4","GO-2026-6188","BIT-rclone-2026-79780"],"ecosystem":"go","ingestedAt":"2026-08-27T19:27:46.515Z","slug":"CVE-2026-79780","body":"## Overview\n\nrclone before v1.75.0 fails to sanitize IBM IAM bearer tokens and SSE-C encryption keys during S3 redirect callbacks, allowing credentials to be preserved across scheme or host changes. Attackers observing network traffic from a trusted endpoint can capture reusable IBM IAM tokens on same-host HTTPS-to-HTTP downgrades or SSE-C keys on cross-origin redirects to access protected S3 objects.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-79780)\n\nAffected packages:\n\n- `github.com/rclone/rclone < 1.75.0`\n\nPatched in:\n\n- `github.com/rclone/rclone 1.75.0`\n\nSource: https://osv.dev/vulnerability/GHSA-8mxv-9xhp-86h4\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Cryostat 4, Red Hat Advanced Cluster Management for Kubernetes 2 · no fix planned: Cryostat 4, Red Hat Advanced Cluster Management for Kubernetes 2 · updated 2026-09-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-79780.json)","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}