Bug 2537783 - CVE-2026-80255 mingw-curl: curl: Information disclosure due to secure cookie attribute bypass [fedora-all]
Summary: CVE-2026-80255 mingw-curl: curl: Information disclosure due to secure cookie ...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: mingw-curl
Version: rawhide
Hardware: Unspecified
OS: Unspecified
low
low
Target Milestone: ---
Assignee: Michael Cronenworth
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["113f4d2b-f36d-4615-900b-f...
Depends On:
Blocks: CVE-2026-80255
TreeView+ depends on / blocked
 
Reported: 2026-09-22 09:13 UTC by Srikanth Balasubramanian
Modified: 2026-09-22 09:13 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Srikanth Balasubramanian 2026-09-22 09:13:29 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

A `Set-Cookie:` header using tab (horizontal tab, ASCII code 9) instead of
space (ascii code 32) immediately before the `Secure` attribute causes curl to
store the cookie without its Secure flag. The cookie might then wrongfully be
sent over plaintext HTTP on subsequent requests to the same host.


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