Memory Allocation with Excessive Size Value Affecting github.com/rclone/rclone/cmd/serve/s3 package, versions <1.75.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMRCLONERCLONECMDSERVES3-20158626
- published27 Sept 2026
- disclosed10 Sept 2026
- creditUnknown
Introduced: 10 Sep 2026
NewCVE-2026-88045 Â (opens in a new tab)How to fix?
Upgrade github.com/rclone/rclone/cmd/serve/s3 to version 1.75.1 or higher.
Overview
Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the Reserve process. An attacker can exhaust system memory and cause service disruption by sending a multipart upload request with a large declared part size in the request headers, without transmitting the corresponding body. This is only exploitable if the S3 server is configured to allow anonymous access or the attacker possesses valid S3 credentials.