CVE-2026-50188 Kirby: Request header injection in `Http\Remote`

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites and plugins using the Kirby Http Remote class, including Remote::request, Remote::get, and Remote::post, to send outgoing HTTP requests with untrusted data in the headers option could allow newline characters...

GHSA-3VHC-576X-3QV4 Hono JWK Auth Middleware has JWT algorithm confusion when JWK lacks "alg" (untrusted header.alg fallback)

Summary A flaw in Hono’s JWK/JWKS JWT verification middleware allowed the algorithm specified in the JWT header to influence signature verification when the selected JWK did not explicitly define an algorithm. This could enable JWT algorithm confusion and, in certain configurations, allow forged...

Node.js: Regular Expression Denial of Service in Headers fetch API

Undici is an HTTP/1.1 client for Node.js. Prior to version 5.19.1, the Headers.set and Headers.append methods are vulnerable to Regular Expression Denial of Service ReDoS attacks when untrusted values are passed into the functions. This is due to the inefficient regular expression used to normali...