CVE-2026-88015 PUBLISHED

rclone local: crafted Range request against a translated symlink panics (DoS)

Assigner: GitHub_M
Reserved: 09.09.2026 Published: 10.09.2026 Updated: 10.09.2026

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, backend/local with --links or links=true exposes symlink targets as .rclonelink objects, and fs.RangeOption.Decode can pass an unchecked positive Range start through Object.Open and openTranslatedLink. The function slices the target string as linkdst[offset:], so a Range start larger than the target length causes a deterministic slice-bounds panic when lib/http/serve exposes the object through HTTP or WebDAV. Go net/http normally recovers the panic per connection, causing request-level denial of service rather than terminating the entire process. This issue is fixed in version 1.75.1.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS Score: 5.3

Product Status

Vendor rclone
Product rclone
Versions
  • Version < 1.75.1 is affected

References

Problem Types

  • CWE-190: Integer Overflow or Wraparound CWE
  • CWE-248: Uncaught Exception CWE