Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2023-45143


Undici is an HTTP/1.1 client written from scratch for Node.js. Prior to version 5.26.2, Undici already cleared Authorization headers on cross-origin redirects, but did not clear `Cookie` headers. By design, `cookie` headers are forbidden request headers, disallowing them to be set in RequestInit.headers in browser environments. Since undici handles headers more liberally than the spec, there was a disconnect from the assumptions the spec made, and undici's implementation of fetch. As such this may lead to accidental leakage of cookie to a third-party site or a malicious attacker who can control the redirection target (ie. an open redirector) to leak the cookie to the third party site. This was patched in version 5.26.2. There are no known workarounds.


Published

2023-10-12T17:15:10.087

Last Modified

2024-11-21T08:26:26.050

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 3.9 (LOW)

Weaknesses
  • Type: Secondary
    CWE-200
  • Type: Primary
    NVD-CWE-noinfo

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application nodejs undici < 5.26.2 Yes
Operating System fedoraproject fedora 37 Yes
Operating System fedoraproject fedora 38 Yes
Operating System fedoraproject fedora 39 Yes

References