pendulum-project ntpd-rs up to 1.7.0 allocation of resources

Summaryinfo

A vulnerability classified as problematic has been found in pendulum-project ntpd-rs up to 1.7.0. The affected element is an unknown function. Performing a manipulation results in allocation of resources. This vulnerability was named CVE-2026-26076. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in pendulum-project ntpd-rs up to 1.7.0. It has been classified as problematic. This affects some unknown processing. The manipulation with an unknown input leads to a allocation of resources vulnerability. CWE is classifying the issue as CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. This is going to have an impact on availability. The summary by CVE is:

ntpd-rs is a full-featured implementation of the Network Time Protocol. Prior to 1.7.1, an attacker can remotely induce moderate increases (2-4 times above normal) in cpu usage. When having NTS enabled on an ntpd-rs server, an attacker can create malformed NTS packets that take significantly more effort for the server to respond to by requesting a large number of cookies. This can lead to degraded server performance even when a server could otherwise handle the load. This vulnerability is fixed in 1.7.1.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-26076 since 02/10/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 299023 (Linux Distros Unpatched Vulnerability : CVE-2026-26076), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.7.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch fa73af14d17b666b1142b9fee3ba22c18a841d24 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (299023). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Project Management Software

Vendor

• pendulum-project

Name

• ntpd-rs

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7.0

License

• open-source

Website

• Product: https://github.com/pendulum-project/ntpd-rs/

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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