CVE-2026-121440

Wasmtime 46.0.0 before 48.0.7 and 49.0.0 before 49.0.4 fails to check forwarded trailers against the WasiHttpHooks::isforbiddenheader hook in wasi-http p3. WASIp3 guests can forward a request or response body so its trailers skip embedder-customized forbidden header filtering, undermining header...

swift-nio-http2: Missing CR/LF/NUL validation in header values

Summary SwiftNIO HTTP/2 was missing validation on inbound HEADERS frames that let CR, LF, NUL, SP and other control characters reach an HTTP/1.1 backend through NIOHTTP2's HTTP/2-to-HTTP/1 codec, enabling HTTP request smuggling or response splitting. Impact Two related gaps in inbound header...

node-undici: cookie leakage

A flaw was found in the Undici node package due to the occurrence of Cross-origin requests, possibly leading to a cookie header leakage. By default, cookie headers are forbidden request headers, and they must be enabled. This flaw allows a malicious user to access this leaked cookie if they have...

node-undici: cookie leakage

A flaw was found in the Undici node package due to the occurrence of Cross-origin requests, possibly leading to a cookie header leakage. By default, cookie headers are forbidden request headers, and they must be enabled. This flaw allows a malicious user to access this leaked cookie if they have...