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CVE-2026-88015

5.3 · MEDIUM

rclone is a command-line program to sync files and directories to and from different cloud storage providers.

Published Sep 10, 2026rcloneCWE-190EPSS 0.36%

Overview

CVE-2026-88015 is a medium-severity vulnerability affecting rclone rclone. It was published on September 10, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories and patches from rclone. Update rclone to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
rclonerclone>= 0, < 1.75.1Affected

References

GitHubgithub.com/rclone/rclone/commit/28bf49d66f94acc3f4f7f318504a706686281af9GitHubgithub.com/rclone/rclone/releases/tag/v1.75.1GitHubgithub.com/rclone/rclone/security/advisories/GHSA-p6m2-r3w9-mpxwGitHubgithub.com/rclone/rclone/security/advisories/GHSA-p6m2-r3w9-mpxw

How CyberStrike helps

Frequently asked questions

What is CVE-2026-88015?

CVE-2026-88015 is a medium-severity vulnerability affecting rclone rclone. It was published on September 10, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-88015?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-88015?

Check the references section for vendor advisories and patches from rclone. Update rclone to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-88015?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-88015 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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