7.3

CVE-2026-88017: rclone

CVSS: 7.3v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-88017DEBIAN-CVE-2026-88017CGA-3jpw-mj47-4pfv
Published 10-09-2026Last modified 11-09-2026
Open JSON

Vulnerability summary

CVE-2026-88017 is a high (CVSS 7.3) vulnerability in rclone. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.2% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.3/10
010
High · v3.1 (CVE.org)
EPSS score
0.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
OPENSUSE-SU-2026:21897-1SUSE-SU-2026:23855-1SUSE-SU-2026:23863-1

Timeline

  1. 10-09-2026
    PublishedVulnerability first disclosed.
  2. 11-09-2026
    Last modifiedVulnerability information updated.

Description

rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.64.0 until 1.75.1, the FTP auth-proxy driver in cmd/serve/ftp/ftp.go stores one obscured password per username in the server-wide userPass map[string]string instead of binding the credential or VFS to the authenticated session. If two accepted credentials use the same username but resolve to different proxy backends, a later CheckPasswd login overwrites userPass[user], and subsequent getVFS operations on the first session are reauthorized with the later password. The first session can then read, create, overwrite, rename, or delete objects using the second credential’s backend authority. Exploitation requires the later same-username login to occur while the first session remains open. This issue is fixed in version 1.75.1.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

0.00 pp

From 0.23% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.23%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard4 products
  • telegraf-1.37All versions (No fix recorded)
  • telegraf-1.38< 1.38.4-r28
  • telegraf-1.39< 1.39.3-r9
  • telegraf-1.40< 1.40.0-r1
Debian1 product
  • rcloneAll versions (No fix recorded)
Github.com/rclone1 product
  • rclone≥ 1.64.0, < 1.75.1
Rclone1 product
Ubuntu1 product
  • rcloneAll versions (No fix recorded)
Wolfi1 product
  • telegraf-1.38< 1.38.4-r28

6 vendors · 9 products

References

9 links