Skip to content
CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2023-46218

This flaw allows a malicious HTTP server to set "super cookies" in curl that

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
hackerone

Description

This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

curl curl

  • 8.4.0 to ≤ 8.4.0affected
  • 7.46.0 to < 7.46.0unaffected

References