adonisjs http-server up to 8.2.1/9.1.0 Route Matching router.matchers.slug resource consumption

Summaryinfo

A vulnerability, which was classified as problematic, was found in adonisjs http-server up to 8.2.1/9.1.0. This affects the function router.matchers.slug of the component Route Matching. Such manipulation leads to resource consumption. This vulnerability is traded as CVE-2026-104150. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in adonisjs http-server up to 8.2.1/9.1.0. It has been rated as problematic. Affected by this issue is the function router.matchers.slug of the component Route Matching. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

AdonisJS HTTP Server is a package for handling HTTP requests in the AdonisJS framework. Prior to 8.2.2 and 9.1.1, the regular expression returned by router.matchers.slug() contains adjacent greedy repetitions with overlapping character classes. When an application applies this matcher to an attacker-controlled route parameter, a long slug ending in a character rejected by the final assertion causes quadratic backtracking and excessive CPU use. Route matching occurs before route and group middleware, so authentication or rate-limiting middleware attached to the route may not prevent an unauthenticated request from blocking the Node.js event loop and stopping the worker from serving unrelated requests or health checks. This issue is fixed in versions 8.2.2 and 9.1.1.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-104150 since 10/01/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 8.2.2 or 9.1.1 eliminates this vulnerability.

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Productinfo

Vendor

• adonisjs

Name

• http-server

Version

• 8.2.0
• 8.2.1
• 9.0
• 9.1.0

Website

• Product: https://github.com/adonisjs/http-server/

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