Bug 2513054

Summary: CVE-2026-11564 trustee-guest-components: libcurl: Certificate validation bypass due to incorrect connection reuse [fedora-all]
Product: [Fedora] Fedora Reporter: Cedric Buissart <cbuissar>
Component: trustee-guest-componentsAssignee: Uri Lublin <uril>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: uril
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["4e93f5bc-0a7e-461d-9f83-8c76da1edcf1"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-08-12 14:21:28 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2496754    

Description Cedric Buissart 2026-08-10 09:27:03 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.

libcurl keeps previously used connections in a connection pool for subsequent
transfers to reuse if one of them matches the setup.

An easy handle that first uses default native CA trust can continue trusting
the native platform store after the application switches that same handle to
custom CA material for a later transfer.
Comment 1 Uri Lublin 2026-08-12 14:21:28 UTC 
trustee-guest-components does not use (lib)curl:

fedpkg clone -a trustee-guest-components
cd trustee-guest-components
fedpkg sources
fedpkg prep
cd trustee-guest-components-0.*.0-build/guest-components-0.*.0
cargo tree | grep curl # no output