Vulnerability record · CVE-2022-27779 · published 2 June 2022
CVE-2022-27779: Haxx curl vulnerability
Haxx · Curl
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.
Description
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/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products
11 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| https://hackerone.com/reports/1553301 | ExploitThird Party Advisory |
| https://security.gentoo.org/glsa/202212-01 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220609-0009/ | Third Party Advisory |
| https://hackerone.com/reports/1553301 | ExploitThird Party Advisory |
| https://security.gentoo.org/glsa/202212-01 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220609-0009/ | Third Party Advisory |
Track CVE-2022-27779 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2022-27779), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.