CVE-2026-61526
MediumCVSS 6.1Exploitation Probability (EPSS)
Low risk9th percentile - higher than 9% of all known CVEs
Summary
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.
Risk Assessment
The organization risks Cross-Site Scripting (XSS) attacks, which could lead to user session theft, redirects to malicious sites, or data theft.
Recommendation
Update AdonisJS HTTP Server to version 8.2.1 or 9.1.0 (depending on the branch used), which include a fix that escapes error.message.
Other vulnerabilities in AdonisJS HTTP Server
See all- CVE-2026-104150High
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.
- 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.
Original NVD description (English source)
AdonisJS HTTP Server is a package for handling HTTP requests in the AdonisJS framework. In versions 8.0.0-next.0 through 8.2.0 and 9.0.0 through 9.0.2, the error.message is interpolated into the default HTML exception response without escaping, allowing a crafted missing-route URL to execute attacker-controlled JavaScript when a victim opens it and no custom status page or JSON response handles the error. When debug mode is disabled and no custom status page handles the error, the default HTML renderer interpolates error.message directly into an HTML response. This issue is fixed in versions 8.2.1 and 9.1.0.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS