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Vulnerability record · CVE-2018-12907 · published 27 June 2018

CVE-2018-12907: Rclone information exposure vulnerability

Rclone · Rclone

In Rclone 1.42, use of "rclone sync" to migrate data between two Google Cloud Storage buckets might allow attackers to trigger the transmission of any URL's content to Google, because there is no validation of a URL field received from the Google Cloud Storage API server, aka a "RESTLESS" issue.

7.5 CVSS 3.0 High EPSS 1.3% · top 30.6% CWE-200 · Information exposure
7.5CVSS 3.0 base score, v2 5.0
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

In Rclone 1.42, use of "rclone sync" to migrate data between two Google Cloud Storage buckets might allow attackers to trigger the transmission of any URL's content to Google, because there is no validation of a URL field received from the Google Cloud Storage API server, aka a "RESTLESS" issue.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://openwall.com/lists/oss-security/2018/06/27/3 Mailing ListThird Party Advisory
https://www.danieldent.com/blog/restless-vulnerability-non-browser-cross-domain-http-request-attacks/ MitigationThird Party Advisory
http://openwall.com/lists/oss-security/2018/06/27/3 Mailing ListThird Party Advisory
https://www.danieldent.com/blog/restless-vulnerability-non-browser-cross-domain-http-request-attacks/ MitigationThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-88018Rclone improper authentication vulnerabilityrclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, rclone serve s3 config…EPSS 0.75%9.8CVE-2026-49980Rclone missing authentication for critical function vulnerabilityRclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.46.0 until 1.74.3, rclone rcd --…EPSS 0.78%9.2CVE-2026-41176Rclone missing authentication for critical function vulnerabilityRclone is a command-line program to sync files and directories to and from different cloud storage providers. The RC endpoint `options/set` is expose…EPSS 3.2%9.2CVE-2026-41179Rclone os command injection vulnerabilityRclone is a command-line program to sync files and directories to and from different cloud storage providers. Starting in version 1.48.0 and prior to…EPSS 5.3%8.8CVE-2026-59733Rclone path traversal vulnerabilityRclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.74.4, rclone serve restic --…EPSS 0.55%8.8CVE-2026-54572Rclone link following vulnerabilityRclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.74.4, with -l/--links, rclon…EPSS 0.40%7.5CVE-2020-28924Rclone vulnerabilityAn issue was discovered in Rclone before 1.53.3. Due to the use of a weak random number generator, the password generator has been producing weak pas…EPSS 1.4%7.3CVE-2026-88017Rclone vulnerabilityrclone 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-…EPSS 0.43%

Source: NIST National Vulnerability Database (record CVE-2018-12907), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.