CVE-2026-104150
HighCVSS 8.7Summary
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.
Risk Assessment
Route matching occurs before middleware, so an unauthenticated request can block the Node.js event loop and stop the worker from serving unrelated requests or health checks.
Recommendation
Upgrade AdonisJS HTTP Server to version 8.2.2 or 9.1.1 (or later).
Other vulnerabilities in AdonisJS HTTP Server
See all- CVE-2026-107718Medium
AdonisJS HTTP Server is a package for handling HTTP requests in the AdonisJS framework. Prior to 8.2.3 and 9.3.0, AdonisJS HTTP Server inserts route parameter values into URLs without encodeURIComponent in the shared createURL() helper used by Router.makeUrl() and Response.redirect().toRoute(). If an application places attacker-controlled data in a dynamic first path segment and uses the generated route URL as a redirect destination, a value beginning with a slash can produce a scheme-relative external URL. Wildcard parameters are affected by the same missing encoding, while APIs intentionally accepting complete redirect URLs are not affected. An attacker can redirect users from a trusted application to an attacker-controlled site, facilitating phishing or abuse of authentication and OAuth flows. This issue is fixed in versions 8.2.3 and 9.3.0.
- CVE-2026-61526Medium
AdonisJS HTTP Server versions 8.0.0-next.0 through 8.2.0 and 9.0.0 through 9.0.2 interpolate error.message into the default HTML exception response without escaping. This allows execution of attacker-controlled JavaScript when a victim opens a crafted missing-route URL and no custom status page or JSON response handles the error.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS