CVE-2022-27779

Name: CVE-2022-27779
Creator: NVD / NIST
Published: 2022-06-02T14:15:44.093+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 2.41%

Last modified Jun 17, 2026

CVE-2022-27779 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 2.41% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

2.41%

82.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-201

Affected Software

Vendor	Product	Versions
Haxx	Curl	>= 7.82.0, < 7.83.1
Netapp	Hci Bootstrap Os	All versions
Netapp	Clustered Data Ontap	All versions
Netapp	Solidfire\, Enterprise Sds \& Hci Storage Node	All versions
Netapp	Solidfire \& Hci Management Node	All versions
Netapp	Hci Compute Node	All versions
Netapp	H410s Firmware	All versions
Netapp	H700s Firmware	All versions
Netapp	H500s Firmware	All versions
Netapp	H300s Firmware	All versions
Splunk	Universal Forwarder	>= 8.2.0, < 8.2.12
Splunk	Universal Forwarder	>= 9.0.0, < 9.0.6
Splunk	Universal Forwarder	9.1.0

References

https://hackerone.com/reports/1553301Exploit, Third Party Advisory
https://security.gentoo.org/glsa/202212-01Third Party Advisory
https://security.netapp.com/advisory/ntap-20220609-0009/Third Party Advisory
https://hackerone.com/reports/1553301Exploit, Third Party Advisory
https://security.gentoo.org/glsa/202212-01Third Party Advisory
https://security.netapp.com/advisory/ntap-20220609-0009/Third Party Advisory

Timeline

Published: Jun 2, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-27779?

How severe is CVE-2022-27779?

CVE-2022-27779 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 2.41% probability of exploitation in the next 30 days.

How do I fix CVE-2022-27779?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-27779?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST