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.
References
History
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MITRE Information
Status: PUBLISHED
Assigner: GitHub_M
Published: 2023-10-12T16:35:40.637Z
Updated: 2023-10-12T16:35:40.637Z
Reserved: 2023-10-04T16:02:46.330Z
Link: CVE-2023-45143
JSON object: View
NVD Information
Status : Analyzed
Published: 2023-10-12T17:15:10.087
Modified: 2024-02-16T16:09:02.490
Link: CVE-2023-45143
JSON object: View
Redhat Information
No data.