{"id":"CVE-2026-79780","aliases":["GHSA-8mxv-9xhp-86h4","GO-2026-6188"],"url":"https://o3.security/vulnerability/CVE-2026-79780","summary":"rclone before v1.75.0 Credential Exposure via S3 Redirect","details":"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 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.","published":"2026-08-25T15:16:09.789Z","modified":"2026-09-12T03:30:39.982642567Z","cvss":null,"epss":{"score":0.00095,"percentile":0.00764,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/rclone/rclone","fixedVersion":"1.75.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79780.json"},{"type":"ADVISORY","url":"https://github.com/rclone/rclone/security/advisories/GHSA-8mxv-9xhp-86h4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-79780"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/rclone-before-credential-exposure-via-s3-redirect"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-12T03:30:39.982642567Z"}}