CVE-2026-67355

guzzlehttp/guzzle versions before 7.15.1 fail to preserve host-only cookie scope, storing the request host in the Domain field instead of marking cookies as host-only. Attackers controlling child hosts can receive host-only cookies intended only for parent hosts, potentially disclosing session...

CVE-2026-67355

guzzlehttp/guzzle versions before 7.15.1 fail to preserve host-only cookie scope, storing the request host in the Domain field instead of marking cookies as host-only. Attackers controlling child hosts can receive host-only cookies intended only for parent hosts, potentially disclosing session...

curl: Public-suffix cookie injection when libpsl is disabled

Summary: When libcurl is built without libpsl, Domain attribute validation accepts public suffixes like .co.uk, allowing a malicious host to plant cookies that are later sent to unrelated sibling domains using the same cookie jar. AI assistance was used to draft this report. Steps to Reproduce: 1...