Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
The rclone http backend, versions 1.49.0 up to but not including 1.75.1, resends custom headers such as secret tokens or cookies to a different host when the server redirects the request. An attacker who controls or can influence a redirect from the configured server can capture those headers at the new destination, for example during a normal list, copy or download. Upgrade to rclone 1.75.1 or later.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 3.7 | Low | 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0019, the 8th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:13 UTC First seen by agentprime
- 31 Oct 2026, 14:13 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-486v-q2wf-fp2r
- OSV: GHSA-486v-q2wf-fp2r
- github.com/rclone/rclone/security/advisories/GHSA-486v-q2wf-fp2r
- nvd.nist.gov/vuln/detail/CVE-2026-88013
- github.com/rclone/rclone/commit/22859b7e696cea3c563c6ba04c6b7f91f74456b4
- github.com/rclone/rclone/commit/79fbc0842f74e02cb84f0e3e7261d169983c8831
- github.com/rclone/rclone/commit/925fb4fb21eb25e75cd1b64fdd17ded857784bfc
- github.com/rclone/rclone
- github.com/rclone/rclone/releases/tag/v1.75.1