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Vulnerability record · CVE-2026-88016 · published 10 September 2026

CVE-2026-88016: Rclone link following vulnerability

Rclone · Rclone

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, when backend/local runs with --links, a source .rclonelink object can plant a symlink in the destination and later directory metadata is applied through that path. MkdirMetadata, writeMetadataToFile, and setTimes operate when Directory.translatedLink=false, so os.Chown, os.Chmod, os.Chtimes, and birth-time handling can bypass os.Root confinement and follow the symlink. An attacker controlling source contents can therefore apply selected ownership, permissions, modification times, or birth times to a file or directory outside the destination, with --metadata required for chmod and chown while modification time is applied by the normal directory workflow. This issue is fixed in version 1.75.1.

7.1 CVSS 3.1 High EPSS 0.27% · top 82.7% CWE-59 · Link followingCWE-281 · CWE-281
7.1CVSS 3.1 base score
0.27%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
15 Sep 2026Last modified by NVD

Description

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, when backend/local runs with --links, a source .rclonelink object can plant a symlink in the destination and later directory metadata is applied through that path. MkdirMetadata, writeMetadataToFile, and setTimes operate when Directory.translatedLink=false, so os.Chown, os.Chmod, os.Chtimes, and birth-time handling can bypass os.Root confinement and follow the symlink. An attacker controlling source contents can therefore apply selected ownership, permissions, modification times, or birth times to a file or directory outside the destination, with --metadata required for chmod and chown while modification time is applied by the normal directory workflow. This issue is fixed in version 1.75.1.

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:L

Affected products

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

References

LinkTags
https://github.com/rclone/rclone/commit/17b0c03338a857bcb0a68d2d4c82ddbdec3f7893 Patch
https://github.com/rclone/rclone/commit/a7ab39d3d1958afa1446982c1dc4e4a73a887e3e Patch
https://github.com/rclone/rclone/releases/tag/v1.75.1 Release Notes
https://github.com/rclone/rclone/security/advisories/GHSA-f8g7-2xjc-7mfh Vendor Advisory
https://github.com/rclone/rclone/security/advisories/GHSA-f8g7-2xjc-7mfh Vendor 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%7.5CVE-2018-12907Rclone information exposure vulnerabilityIn Rclone 1.42, use of "rclone sync" to migrate data between two Google Cloud Storage buckets might allow attackers to trigger the transmission of an…EPSS 1.3%

Source: NIST National Vulnerability Database (record CVE-2026-88016), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.