CVE-2022-27779

libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl's "cookie engine" can bebuilt with or without [Public Suffix List](https://publicsuffix.org/)awareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain.

CVSS 3.1

5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS

2.8% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-25)

CWE

CWE-201

Published

2022-06-02

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• haxx:curl
• netapp:clustered_data_ontap
• netapp:h300s_firmware
• netapp:h410s_firmware
• netapp:h500s_firmware
• netapp:h700s_firmware
• netapp:hci_bootstrap_os
• netapp:hci_compute_node
• netapp:solidfire\,_enterprise_sds_\&_hci_storage_node
• netapp:solidfire_\&_hci_management_node
• splunk:universal_forwarder

References

• https://hackerone.com/reports/1553301
• https://security.gentoo.org/glsa/202212-01
• https://security.netapp.com/advisory/ntap-20220609-0009/
• https://hackerone.com/reports/1553301
• https://security.gentoo.org/glsa/202212-01

Check your stackJSON