actix-http before 3.20.1 and actix-web before 4.18.2 Decompression Bomb DoS via encoding::Decoder

actix-http before 3.20.1 and actix-web before 4.18.2 contain an unbounded decompression vulnerability in encoding::Decoder that lets remote attackers exhaust memory and CPU via compressed bodies. Attackers can send small highly compressed gzip, deflate, Brotli or zstd request bodies to Json, Form, Bytes or String extractors, or serve them to awc clients, causing denial of service.

actix-http before 3.12.1 HTTP Request Smuggling via CL.TE

actix-http versions before 3.12.1 contain an HTTP request smuggling vulnerability in the HTTP/1.1 parser that accepts requests with both Content-Length and Transfer-Encoding: chunked headers. Unauthenticated remote attackers can exploit this through a front-end intermediary to desynchronize backend requests and smuggle malicious HTTP requests to the Actix service.

actix-files before 0.6.10 Information Disclosure via Files

The actix-files crate (actix_files) before version 0.6.10 contains an information exposure vulnerability. When a non-existing folder is passed as the serve_from argument to Files::new(), the mount path defaults to an empty path; the service then joins the request path with this empty path and canonicalizes it, causing Rust to resolve it as a relative path. As a result, an attacker can request paths that resolve relative to the application's working directory and access unintended files.

actix-files before 0.6.10 Denial of Service via empty Range header

actix-files before 0.6.10 contains a denial of service vulnerability triggered by an empty Range header in GET requests for static files. When panic is set to abort, remote attackers can crash the process on-demand by sending a GET request with an empty Range header.

An issue was discovered in the actix-web crate before 0.7.15 for Rust. It can add the Send marker trait to an object that cannot be sent between threads safely, leading to memory corruption.

An issue was discovered in the actix-web crate before 0.7.15 for Rust. It can unsoundly extend the lifetime of a string, leading to memory corruption.

An issue was discovered in the actix-web crate before 0.7.15 for Rust. It can unsoundly coerce an immutable reference into a mutable reference, leading to memory corruption.