Snyk Security Database

undici is an An HTTP/1.1 client, written from scratch for Node.js

Affected versions of this package are vulnerable to Improper Validation of Integrity Check Value via the fetch() function's Subresource Integrity verification logic, which splits the integrity string on a single space rather than on all ASCII whitespace characters. An integrity value whose digest is preceded by a horizontal tab or other non-space ASCII whitespace (e.g. \tsha256-...) is parsed as a single unrecognized token and skipped. When no recognized algorithm remains, the integrity list is treated as empty and the response is accepted unconditionally, allowing a server that returns a body different from the pinned digest to pass the check. An attacker who controls the response body can deliver arbitrary bytes to an application that uses whitespace-surrounded SRI metadata, with no integrity error raised.

tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed.

Affected versions of this package are vulnerable to Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') via the max_age argument of RequestHandler.set_cookie (also invoked by set_signed_cookie, set_secure_cookie, and clear_cookie). When an application passes attacker-influenced input as max_age without first converting it to an integer, an attacker can embed a semicolon-delimited string that injects additional Set-Cookie attributes - such as Domain, Path, or Secure - directly into the response header, widening the cookie's scope to parent paths or other subdomains.

Note: This is only exploitable when the application passes a value derived from untrusted input as the max_age argument without converting it to an integer first.

Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity via the TagList.add() method in CBORParser. An attacker can send a CBOR value preceded by a long run of tags, causing repeated fixed-increment array growth and copying that consumes quadratic CPU and garbage-collection time. Parsing pins request threads, and concurrent requests can exhaust the application’s request pool.

Notes

• Tag accumulation: CBORParser has no configurable cap on stacked tags, so the attacker can send an arbitrarily long tag run; deployments cannot limit this attack through a tag-count setting.