CLEANSTART-2026-RK35937: When parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU

Published Nov 13, 2026
·
Updated

Security vulnerability affects the trust-manager package. When parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU.

Affected Software

1 affected componentFixes available
cleanstart/trust-manager<0.25.0-r1
0.25.0-r1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade cleanstart/trust-manager to a version that resolves this vulnerability.

    Fixed in 0.25.0-r1

Event History

Nov 13, 2026
Advisory Published
via OSV·12:37 AM
Data Sourced
via OSV·12:37 AM
DescriptionSeverityAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

Who can exploit this issue?

The vector is network-accessible and requires no privileges or user interaction. An attacker able to send HTTP requests with crafted Range headers to an affected FileServer(FS), ServeContent, or ServeFile(FS) endpoint could trigger excessive CPU consumption.

2

What is the likely impact of a successful attack?

The stated impact is excessive CPU consumption, which can affect availability. The provided severity vector indicates no confidentiality or integrity impact.

Contact

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